--- title: "Nightmare x sisters Ω ~Shuumatsu no Requiem~" description: "Setsuna, Yuuka, and Rinne, who had been continuing their battle against the Demon Cult, were undergoing rigorous training in preparation for their next battle, " image: "https://t.vndb.org/cv/32/118732.jpg" --- # Nightmare x sisters Ω ~Shuumatsu no Requiem~ ![Nightmare x sisters Ω ~Shuumatsu no Requiem~](https://t.vndb.org/cv/32/118732.jpg) **Alternative Title:** Nightmare×sisters Ω ～終末のレクイエム～ **Aliases:** Nightmare x sisters Omega ~Shuumatsu no Requiem~ **Developer:** Guilty Nightmare Project **Release date:** Mar 28, 2025 **Platform:** Windows **Language:** Japanese **Rating:** 7.4/10 (20 votes) ## Description Setsuna, Yuuka, and Rinne, who had been continuing their battle against the Demon Cult, were undergoing rigorous training in preparation for their next battle, aiming to level up even further. Just then, they heard that the cult leader, who could be called the root of all evil, had begun to move again, so they decided to return after finishing their training. They joined forces with Kuon and Rei, who had fought the revived cult leader over the sacred sword Amagumo no Tsurugi, and finally began their campaign to destroy the cult. Just as they were about to move forward, the cult leader, who had obtained the Amagumo no Tsurugi, vanished once again, leaving them with the urgent task of locating his whereabouts. Setsuna, who had to wait until the whereabouts of the cult leader were known, proposed that they all live together in preparation for the decisive battle. There was a family dormitory in the city where the headquarters of the church to which Setsuna and the others belonged was located, so they decided to start living together. Even as they spend their days in temporary peace, the Setsuna group continues to prepare for the impending decisive battle. Georgi, the elite exorcist who accompanied the Setsuna group on their training, will also lend his strength, and the momentum for the defeat of the cult leader grows stronger... Despite various accidents along the way, they gradually move closer to the final showdown with the help of Chisei and others they met at the academy. What awaits them at the end is either the exorcism of the evil demon or an endless cycle of torment. [Translated from the [official site](https://www.guilty-soft.com/product/Nightmare_x_Sisters_Omega/)] ## Characters ### Katsuragi Kuon (葛木 久遠) A first-year high school, school librarian and apprentice Onmyouji. Outside of class, she's either busy with her librarian duties or assists her father during exorcism commissions. Because of this, she's perpetually turning down invitations to hang out with her classmates. She's been trained by her father in the Onmyouji arts of exorcism from a young age. She also consumes a draught of traditional Chinese medicine regularly on her father's orders, ostensibly to regulate her abilities. [Spoiler] The offspring of a forced union between Katsuragi Kimihiro's younger sister and a demon fox, Kimihiro freed her from the cult's clutches and raised her as his adoptive daughter. Although she should have been eliminated because of her demonic lineage, Kimihiro could not bring himself to kill his sister's child and decided to raise her as a human. The Onmyouji training and the medicine are meant to prevent her from manifesting her demon powers. She's trained to use her talismans to summon fire to destroy evil spirits and demons. When her demonic powers awaken and she loses control, she uses lightning spells instead. The medicine she regularly imbibes is meant to shackle her innate demonic powers, not consuming it for two days coupled with repeated sexual intercourse is enough to make her lose control. [/Spoiler] - **Gender:** Female - **Hair:** White, Short, Straight, Spiky Bangs - **Body:** Teen, Slim, Pale, Big Breasts - **Eyes:** Violet, Tsurime - **Clothes:** Necktie, Miniskirt, Clothing with Ribbons, Pleated Skirt, Over The Knee Socks, Off-The-Shoulder Shirt, Loafers, Ribbon Headband, Blazer School Uniform, Formal Shirt - **Personality:** Shy - **Role:** Daughter, Niece, Onmyouji, High School Student, Library Committee Member, Half Demon, Tenth Grader - **Engages in:** Monster Birth - **Subject of:** Forced Pregnancy - **Items:** Paper Talismans - **Voiced by:** Sena Yuzuki ### Kizuki Rei (鬼月 零) She lost her parents at a young age and was shuffled between relatives' homes for a while, but now lives alone. She doesn't show her emotions and doesn't talk much, so people often say they can't tell what she's thinking. After learning that a demon was involved in her parents' deaths, she has been traveling across the country gathering information to find that demon and seek revenge. The wooden sword she carries is a memento from her father, who was a master swordsman, and she never parts with it. Her vampire blood is diluted, so it doesn't significantly affect her daily life, but she has a tendency to avoid sun exposure as much as possible. Interestingly, she has a sweet tooth. [Translated from [url=https://www.guilty-soft.com/product/Nightmare_x_vampire/]the official site[/url]] - **Gender:** Female - **Hair:** Red, Ponytail, Waist Length+, Wavy - **Eyes:** Green - **Items:** Katana - **Role:** Half Vampire - **Voiced by:** Nekomi Yuu ### Natsume Rinne (棗 麟音) She's cheerful and innocent, and her emotions are clearly visible. She's not good at studying, but her grades are still pretty good. She's the type who can guess the answer in math intuitively. She's good at sports, but not so good at ball games. She lost her mother at an early age and lived with just her father. As a result, she can do all the household chores, but she's generally careless. A few months ago, she was attacked by a demonic cult and lost her father. At that time, the power of the Grim Reaper hidden within her was awakened, and although she fought back against the cult members, she became a girl being pursued. Since then, she has spent her days on the run, fighting the demonic cult's pursuers. Her weapon is the Grim Reaper's Scythe, inherited from her father. [Translated from the [url=https://www.guilty-soft.com/product/Nightmare_x_Deathscythe/]official site[/url]] - **Gender:** Female - **Hair:** Twin Tails, Sidehair - **Clothes:** Sport Bloomers, Cape, School Swimsuit, Usamimi Headband - **Role:** High School Student - **Items:** Scythe - **Subject of:** Forced Pregnancy - **Engages in:** Bunnygirl Cosplay - **Body:** Big Breasts - **Voiced by:** Fujino Murasaki ### Shindou Setsuna (神堂 刹那) An ordinary high-school student by day, by night she is an exorcist who partners her older sister to resolve exorcism commissions assigned by the Church. She underwent martial arts training together with her childhood friend Touma. During exorcisms, her sister suppresses the demon using a combination of relics and innate spiritual ability so that Setsuna can attack the exposed demon with melee attacks enhanced by innate spiritual power. [Spoiler] She and her sister were unexpected births in the demonic cult which had abducted their mother for use as a breeding vessel. The church managed to smuggle them out and train them as exorcists, so the cult and their leader opted to bide their time until the girls were ready to resume the role their mother had originally assumed. Because of the way the "vessels" are impregnated, it is very possible Setsuna and Yuuka are half-sisters. They do not look alike and have very different physical attributes. If Setsuna loses hope after the school gang bang scene, she is taken back to the demon cult and eventually gives birth to the next generation of breeding vessles. If she vows to keep going, Touma eventually succeeds in rescuing them with help from the Church. Despite everything she and her sister went through, they vow to continue their work as exorcists. [/Spoiler] - **Gender:** Female - **Hair:** Black, Waist Length+, Straight, V Bangs, Sidehair - **Body:** Teen, Slim, Pale, Big Breasts - **Clothes:** School Uniform, Miniskirt, Hoodie, Habit, Veil, Ribbon Hair Accessory, Over The Knee Socks, Guimpe - **Personality:** Proactive - **Role:** Orphan, Full Sister, Childhood Friend, High School Student, Younger Sister, Exorcist, Nun - **Eyes:** Violet, Tsurime - **Engages in:** Martial Arts, Monster Birth - **Subject of:** Coercion, Forced Pregnancy - **Voiced by:** Minase Yuki ### Shindou Yuuka (神堂 悠果) Setsuna's older sister and her surrogate mother. She works full-time as a nun in the local church while Setsuna goes to the academy for classes in the day. Before Setsuna partnered Yuuka on exorcisms, Yuuka would work alone or with other exorcists dispatched by the church. She has considerably more experience with exorcisms than Setsuna and has experienced her fair share of failures as well. [Spoiler] Yuuka was much older than the other children in the orphanage so she acted like a big sister to everyone. Because of this, Setsuna was jealous she never got enough attention from Yuuka when they were growing up. She is deceived and abducted by the demon cult when she answers the exorcism commission set up by the cult. After raping and impregnating her, the cult forces her to birth demons. Because of her mother's bloodline, her pregnancy lasts for a matter of weeks and the demons she births mature at an accelerated rate. Throughout her ordeal, she never loses hope despite her submissive demeanour. Because she was confined for longer and was not in the same physical condition as Setsuna, she is hospitalised as a result of her exertions. In the bad end, both she and Setsuna become full-time birthing vessels for the demon cult. [/Spoiler] - **Gender:** Female - **Hair:** Blond, Waist Length+, Wavy, Side Tail, Sidehair - **Body:** Teen, Slim, Pale, Big Breasts - **Role:** Orphan, Full Sister, Childhood Friend, Older Sister, Nun - **Eyes:** Amber - **Personality:** Relaxed - **Subject of:** Confinement - **Clothes:** Habit, Cape, Veil, Ribbon Hair Tie, Decorative Belt, Guimpe, Ornament Hanging from Clothes - **Engages in:** Monster Birth - **Voiced by:** Kawamura Mitsuka ### Georgy (ゲオルギー) A man who works as an exorcist for the organization to which Setsuna and the others belong. Rumored to be the most powerful member of the organization, he travels around the world exorcising demons. He is like a mentor to Setsuna and the others, and has accompanied them on their training. He has come to Japan this time to defeat the cult leader. [Translated from the [url=https://www.guilty-soft.com/product/Nightmare_x_Sisters_Omega/]official site[/url]] - **Gender:** Male - **Hair:** Short, Straight, Grey, Spiky Bangs - **Body:** Pale, Young-adult - **Eyes:** Grey - **Clothes:** Belt, Cassock - **Role:** Mentor, Exorcist ### Guru (教祖) The founder of a new religious group with branches nationwide. After the previous battle with the Setsuna, he went missing for a while, but reappeared to get the sacred sword, “Amagumo no Ken.” After getting the sword, he disappeared again. [Translated from the [url=https://www.guilty-soft.com/product/Nightmare_x_Sisters_Omega/]official site[/url]] - **Gender:** Male - **Hair:** Short - **Body:** Pale, Adult - **Eyes:** Grey - **Clothes:** Mask - **Personality:** Manipulative, Religious Extremist ### Kitakawa Touma (喜多川 冬馬) Setsuna's classmate and childhood friend. He learnt martial arts together with her and is arguably more skilled than she is, however he lacks the sisters' ability to harm demons. He is privy to the sisters' secret occupation as exorcists and tries to help them anyway he can. He flags up the increasing frequency of demonic possession to Setsuna and is concerned about the trouble it forebodes. [Spoiler] After Yuuka's disappearance, he worries about the burden on Setsuna as the sole remaining exorcist in their town and eventually volunteers as an apprentice exorcist. The local priest who has watched over the sisters since they were children agrees, as the Church HQ has sent out orders that Setsuna be protected and her stubborn refusal to accept new partners allows him to assign Touma as her bodyguard. After their first exorcism together, Touma gathers his resolve to assist Setsuna in any way he can, even if he cannot help in the actual battle against the demon. He is surprised at how draining the process is, despite being in decent physical shape himself. When the demon cult makes its move for Setsuna, Touma is also captured despite the pair's best efforts to escape. He is then used as a bargaining chip to coerce Setsuna into deceiving her fellow classmates to serve as fellow breeding vessels. In the bad end, he is executed by the cult when Setsuna openly disobeys orders. In the true end he succeeds in sending out an SOS to the Church HQ. He then prepares a ruse to deceive the cult into letting him out to bring the girls in Setsuna's stead. Eventually he brings reinforcements from the Church and helps rescue the sisters. Despite seeing what Setsuna went through and being an unwilling accessory to her ordeal, he continues to treat her as before despite his growing romantic feelings for her. [/Spoiler] - **Gender:** Male - **Hair:** Brown, Short, Spiky, Spiky Bangs - **Body:** Slim, Pale, Young-adult - **Clothes:** School Uniform - **Personality:** Proactive, Kind - **Eyes:** Black, Tsurime - **Role:** Childhood Friend, High School Student, Exorcist - **Engages in:** Martial Arts - **Subject of:** Confinement, Avoidable Death (obsolete) ### Saiki Eimi (斉木詠美) A senior one student. A transfer student who moved into Kuon's class about a month ago. Although she has a mature atmosphere, she is friendly, good with people and blends into the class immediately. She seems to be interested in Kuon and often talks to her. - **Gender:** Female - **Hair:** Brown - **Body:** Pale - **Clothes:** School Uniform, Necktie, Chinese Dress, Strap-on Dildo - **Eyes:** Green - **Personality:** Friendly, Loyal - **Role:** High School Student, Transfer Student, Antagonist, Criminal Accomplice, Tenth Grader - **Engages in:** Betrayal - **Voiced by:** Fujisaki Sayaka ### Shimotsuki Chisei (霜月 知星) First-year student at the academy. A female student who attends the same academy that Setsuna and the others transferred to. She founded the “Local History Study Group” at the academy, but she is the only member and works alone. She is skilled with her hands and good at drawing and sewing, and she is also good with computers and has strong information gathering skills. Her hobby is creative activities, and she tends to become absorbed in things she likes. [Translated from the [url=https://www.guilty-soft.com/product/Nightmare_x_Sisters_Omega/]official site[/url]] - **Gender:** Female - **Hair:** Blond, Twin Tails - **Eyes:** Brown - **Body:** Teen, Pale - **Clothes:** School Uniform, Miniskirt, Bunny Dress, Off-The-Shoulder Shirt - **Role:** High School Student - **Voiced by:** Kadonashi Marumi ## Shops - [Official Website](https://www.guilty-soft.com/product/Nightmare_x_Sisters_Omega/) - [DLsite](https://www.dlsite.com/pro/work/=/product_id/VJ01004837.html) - [Getchu](http://www.getchu.com/soft.phtml?id=1316998) ## Releases ### Japanese - **2025-03-28**: Nightmare x sisters Ω ~Shuumatsu no Requiem~ - [Official website](https://www.guilty-soft.com/product/Nightmare_x_Sisters_Omega/), [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=37613), [Getchu](http://www.getchu.com/soft.phtml?id=1316999) - **2025-03-28**: Nightmare x sisters Ω ~Shuumatsu no Requiem~ sister's collection Σ - [Official website](https://www.guilty-soft.com/product/Nightmare_x_Sisters_Omega/), [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=37613), [Getchu](http://www.getchu.com/soft.phtml?id=1316998), [DMM](https://www.dmm.co.jp/mono/pcgame/-/detail/=/cid=2248will471allset/) - **2025-06-13**: Nightmare x sisters Ω ~Shuumatsu no Requiem~ Download Edition - [Official website](https://www.guilty-soft.com/product/Nightmare_x_Sisters_Omega/), [DLsite](https://www.dlsite.com/pro/work/=/product_id/VJ01004837.html), [DMM](https://dlsoft.dmm.co.jp/detail/will_0351) ## Tags Gang Rape, Rape, Group Sex of Multiple Females and Males, Female Protagonist ## More Games from Guilty Nightmare Project - [Nightmare x Sisters ~Ingoku no Sacrifice~](https://pinovel.net/v27385) - [Nightmare x Onmyoji ~Kindan no Paradox~](https://pinovel.net/v29243) - [Nightmare x Vampire ~Fukushuu no Inferno~](https://pinovel.net/v29881) - [Nightmare x Deathscythe ~Hangyaku no Resonance~](https://pinovel.net/v32677) - [Nightmare x NobleBlood ~Uragiri no Abyss~](https://pinovel.net/v38271) - [Nightmare x Maverick ~Saiyaku no Revenant~](https://pinovel.net/v47642) - [Nightmare x sisters Ω ~Shuumatsu no Requiem~](https://pinovel.net/v50075) - [Nightmare x BlackCat ~Tsuioku no Beyond~](https://pinovel.net/v60666) --- *View the full details at [pinovel.net/v50075](https://pinovel.net/v50075).* ```json {"@context":"https://schema.org","@type":"VideoGame","@id":"https://pinovel.net/v50075#game","name":"Nightmare x sisters Ω ~Shuumatsu no Requiem~","description":"Setsuna, Yuuka, and Rinne, who had been continuing their battle against the Demon Cult, were undergoing rigorous training in preparation for their next battle, ","url":"https://pinovel.net/v50075","image":"https://t.vndb.org/cv/32/118732.jpg","author":{"@type":"Organization","name":"Guilty Nightmare Project"},"aggregateRating":{"@type":"AggregateRating","ratingValue":"7.4","bestRating":10,"worstRating":1,"ratingCount":20}} ```