もっと！ヒミツたいけん

The protagonist of the story and Yumi's nephew. He refers to himself using "boku".

His father is working abroad and his mother is taking care of her father, so he is left in the care of Yumi and her daughter. He is an only child.

He is mild-mannered and shy and unware that he looks pretty. He does whatever the girls tell him to do resulting in the creation of a "secret game"

While shy he is not an introvert. He is intelligent, likes games and has friends. He's not particularly good at sports.

He's interested in the opposite sex but too shy to do anything about it.  His embarrassment and single track mind regarding sex is found to be cute and is enough to attract girls. 

[From [url=http://www.complets.co.jp/complet's/bokumitsu.html]official site[/url]]

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Cunnilingus, Virgin Sex, Male on Male Sex, Anal Sex, Masturbation, Incest, Handjob, Consumption of Porn, Sex in Public Places, Sex in Water, Outdoor Sex, Consensual Porn Acting, Spit-roast, Vaginal Fingering, Cowgirl, Sitting Sex, Doggy Style, Quickie Fix, Missionary, Reverse Missionary, Butterfly, Bathroom Sex, Discreet Sex, Consensual Phone Sex, Masturbation in front of an Audience, Sex on Toilet, Group Sex of One Male and Several Females, Group Sex of Multiple Females and Males, Consensual Group Sex of One Female and Several Males, Penile Masturbation

Saeki Akira 佐伯 章

She is Narumi's younger sister. She is friends with Akira and Junpei's girlfriend. According to others she is "stupid and lecherous".

Kazuko is a cheerful and open-minded girl who can get along with anyone. However, it is said that she does not get along well with her older sister Narumi. She is characterized by her glasses and braided hair.

She looks like a quiet girl with glasses, but in fact, she is a leader among the four because of her curiosity and aggressiveness. Even her boyfriend, Junpei is completely under her control. She is a very active person, and is very active with the opposite sex which she inherited from her older sister.

She is one to speak her mind and makes her feelings and words known. She helps her friends when they are unable to express themselves out loud. She likes what she likes because she's straightforward.

[From [url=http://www.complets.co.jp/complet's/bokumitsu.html]official site[/url]]

Missionary, Doggy Style, Bukkake, Nipple Sucking, Butterfly

Blowjob, Anilingus, Twin Blowjob, Handjob, Sex in Public Places, Outdoor Sex, Sex in Front of an Audience, Consensual Porn Acting, Group Sex of One Male and Several Females, Group Sex of Multiple Females and Males, Rimming Handjob, Consensual Porn Production

Nakajima Kazuko 中島 和子

A woman who works as an assistant to Kanako. She works as a freelancer as her day job.

She always wears only underwear in her room and goes out only 2 or 3 times a month. However, she seems to be the most sensible of the three in her doujin circle.

[From [url=http://www.complets.co.jp/complet's/motomitsu.htmll]official site[/url]]

Blowjob, Handjob, Sex with Children, Group Sex of One Male and Several Females

Nakayama Chiharu 中山ちはる

She is the daughter of the next-door neighbor of Akira and Naoko's older sister. She is Naoko's older sister, but they are just one year apart.

She has been married and left home by the time Akira can remember. Perhaps that is why she calls herself "auntie" to Akira. She is a former married woman who has recently left her husband and returned to her home, but the reason for this is a mystery.

She is a former married woman who left her husband and came back to Japan, but the reason is a mystery. She is a former married woman who left her husband and came back to Japan, but the reason for this is a mystery. However, like Naoko, she seems to think that Sho is still a child.

Unlike Naoko, she has a calm personality. She has a good looks, with long hair, big tits, and eyes that tickle a man's fancy. In addition, she can do everything from cooking to laundry. She is very caring, probably because she used to be a married woman.

[From [url=http://www.complets.co.jp/complet's/motomitsu.htmll]official site[/url]]

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Otonashi Kikuko 音無喜久子

Yumi's only daughter. She is a cousin to Akira. Her father passed away shortly after she was born and has lived alone with her mother ever since. She is strong and very affectionate.

She has a strong personality and is not very sociable. When he speaks with Kazuko and others, she usually does not speak aggressively, but only replies with a simple "ah-ha". Of course, she treats Akira in the same way. In a sense, she is a shy girl like Akira.

Like a girl of her age, she is interested in sex and the opposite sex (especially Akira), but she is reluctant to move forward on her own. Most of the time, she is encouraged by Kazuko. She complains but goes along with Kazuko's actions, and it seems to show it.

She likes Akira, however, she can't be honest with herself due to her personality so she sometimes speaks to him in a spiteful manner. She is jealous of Kazuko who is open and frank with Akira.

[From [url=http://www.complets.co.jp/complet's/bokumitsu.html]official site[/url]]

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Saeki Yuki 佐伯 雪

He is a boy who lives up to his nickname of "one-punch boy. He likes to go out and about, which is probably why he is so tanned when he takes off his clothes. He is a bit childish, but he also hangs out with Kazuko and the girls in Yuki's group.

His personality is cheerful and a bit short-tempered. He is the type of good-natured kid you would expect to find at least one in your class. He has a funny way of talking and acting, and Kazuko plays with him.

He is not that popular with girls. He has a tendency to be easily infatuated. He is very knowledgeable about sex for some reason. Kazuko think of him as "stupid and lecherous"

[From [url=http://www.complets.co.jp/complet's/bokumitsu.html]official site[/url]]

Incest, Doggy Style, Consensual Group Sex of One Female and Several Males

Tomoda Junpei 友田 順平

A homeroom teacher. During vacations, she does home visits for guidance purposes.

She is famous for being scary, she can be quite strict in class. In reality, she is a woman who loves shorties. This is the reason why she became a teacher.

Her love of shotas has grown so strong that she and her friends Chiharu and Kanako formed a Yaoi shota doujinshi circle, and have even participated at Comiket

Incidentally, the name of their circle is "Shonen Hosho Kyokai" ("Association for the Protection of Boys").

[From [url=http://www.complets.co.jp/complet's/motomitsu.htmll]official site[/url]]

Handjob, Sex with Children, Vaginal Gaping, Group Sex of One Male and Several Females

Tomonari Mayumi 友成真弓

She is a professional manga artist.

She has been serializing a manga that is popular with older women who likes shota's. It is said to have a cult following.

She always wears a T-shirt and spats in her room, and always wears Japanese coat. She sometimes goes to the office in this outfit to submit manuscripts....

She draws yaoi style shota doujins with Mayumi and Chiharu.

[From [url=http://www.complets.co.jp/complet's/motomitsu.htmll]official site[/url]]

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Tsukamoto Nanako 塚本かなこ

She is a classmate of Akira and is the chairperson of the committee.

She is a little bit rich, and she is always bothering Akira in some way. 

Her grades are a little higher than Akira's, and her athletic ability is also a little higher than Akira's. She is a bit difficult to approach because of her strong-willed personality.

She has a beautiful but not pretty face, and is always moody. She has thick eyebrows and round eyes, and at first glance, she appears to be a selfish and bullying "ojousama" type.

[From [url=http://www.complets.co.jp/complet's/motomitsu.htmll]official site[/url]]

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Cupless Corset, Thong Panties, Latex Long Gloves

Oosako Miki 大迫美姫

She is the daughter of the next-door neighbor and a female college student.

She is asked to take care of the Akira and his friends but she just ends up causing a mess.

She is crass and masculine, and her words and actions are rough. She still treats Akira as a kid.

She is not good at housework and usually leaves it to her older sister, Kikuko. She has a bad drinking habit, and when she gets drunk, she gets unusually excited.

[From [url=http://www.complets.co.jp/complet's/motomitsu.htmll]official site[/url]]

Otonashi Naoko 音無奈緒子

Saeki Mariko 佐伯 真理子

Miki's childhood friend. He's always attached to her and seems to be treated like a servant by her.

He gets along well with Akira and become good friends. He is mild-mannered, shy, and quiet. His mannerisms are quite girly.

He wears short pants, glasses and shorts. He is shorter than Akira.

[From [url=http://www.complets.co.jp/complet's/motomitsu.htmll]official site[/url]]

Anal Sex, Masturbation, Missionary, Male on Male Sex Only, Penile Masturbation

Sagawa Yuuji 佐川佑二

Takes place a year after "Boku no Himitsu Taiken".

Collection ～蒐集された悪夢～

Collection  ~Shuushuu Sareta Akumu~

CASE266～266号事件～

Case 266 ~266 Gou Jiken~

ボクのヒミツたいけん

Boku no Himitsu Taiken

恋するサイエンス

Koi Suru Science

Motto! Himitsu Taiken

母性～ママクラブ～

Bosei ~Mama Club~

まってぃ

Matty

続・ママクラブ

Zoku Mama Club

ボクの「なつやすみ」ヒミツたいけん

Boku no "Natsuyasumi" Himitsu Taiken

野外学習

Yagai Gakushuu

ママ！つま？

Mama! Tsuma?

もうすぐ夏休み！

Mousugu Natsuyasumi!

ボーイミーツワイヴス

Boy Meets Wives

ママしぼり2（ママしぼりの事情）

Mama Shibori 2 (Mama Shibori no Jijou)

じゅーしぃエイジ

Juicy Age

診てくださいます？

Mite Kudasaimasu?

ママクラブ・参観

Mama Club Sankan

まままーじゃん

Mama Mahjong

ツマ×ヘヴン

Tsuma x Heaven

Collection ReBIRTH

野外学習2

Yagai Gakushuu 2

アネ×ヘヴン

Ane x Heaven

The・ガッツ！－マキシマム・マタニティ！－

The Guts! -Maximum Maternity!-

Let’s裸GO！ ぼくラの自由研究

Let's la Go! Bokura no Jiyuu Kenkyuu

野外学習3

Yagai Gakushuu 3

ショタマネ ぼくがマネージャーになった理由

Shotamane Boku ga Manager ni Natta Wake

もっと！ 野外学習～夏期特別講習編～

Motto! Yagai Gakushuu ~Kaki Tokubetsu Koushuu Hen~

ママしぼり３の事情

Mama Shibori 3 no Jijou

もうすぐ夏休み！2

Mousugu Natsuyasumi! 2

ママとの甘い性活

Mama to no Amai Seikatsu

姉妹との甘い性活

Shimai to no Amai Seikatsu

新・野外学習 ～ヌーディストキャンプ編～

Shin Yagai Gakushuu ~Nudist Camp Hen~

メイドとの甘い性活

Maid to no Amai Seikatsu

ママとの甘い性活Ⅱ

Mama to no Amai Seikatsu II

ぶらがく

Buragaku

ママクラブ四 ～正しい性教育を教えよう～

Mama Club Shi ~Tadashii Seikyouiku o Oshieyou~

Complet's

Blueberry Soft Light

N43 Project

<a target="_blank" href="https://vndb.org/r11132" title="Motto! Himitsu Taiken">Motto! Himitsu Taiken</a>

<a target="_blank" href="https://vndb.org/r71263" title="Motto! Himitsu Taiken - Download Edition">Motto! Himitsu Taiken - Download Edition</a>

<a target="_blank" href="https://vndb.org/r11133" title="Motto! Himitsu Taiken - DVDPG">Motto! Himitsu Taiken - DVDPG</a>

<a target="_blank" href="https://vndb.org/r55418" title="Himitsu Taiken Special Pack">Himitsu Taiken Special Pack</a>

<a target="_blank" href="https://vndb.org/r71262" title="Himitsu Taiken Special Pack - Download Edition">Himitsu Taiken Special Pack - Download Edition</a>

<a target="_blank" href="https://vndb.org/r153587" title="Motto! Himitsu Taiken - Revised Edition DVDPG">Motto! Himitsu Taiken - Revised Edition DVDPG</a>

Date	Age	Title
2003-03-14	♥18+	Motto! Himitsu Taiken
2005-11-25	♥18+	Motto! Himitsu Taiken - Download Edition
2008-08-15	♥18+	Motto! Himitsu Taiken - DVDPG
2018-03-16	♥18+	Himitsu Taiken Special Pack
2018-03-16	♥18+	Himitsu Taiken Special Pack - Download Edition
2018-09-20	♥18+	Motto! Himitsu Taiken - Revised Edition DVDPG

Status:	Finished
Developer:	Complet's
Game Engine:	KiriKiri

Motto! Himitsu Taiken

Description

Tags

Releases

Game details

Characters (12)

Saeki Akira
佐伯章

Nakajima Kazuko
中島和子

Nakayama Chiharu
中山ちはる

Otonashi Kikuko
音無喜久子

Saeki Yuki
佐伯雪

Tomoda Junpei
友田順平

Tomonari Mayumi
友成真弓

Tsukamoto Nanako
塚本かなこ

Oosako Miki
大迫美姫

Otonashi Naoko
音無奈緒子

Saeki Mariko
佐伯真理子

Sagawa Yuuji
佐川佑二

More From Complet's

Motto! Himitsu Taiken

Description

Tags

Releases

Game details

Characters (12)

Saeki Akira佐伯 章

Nakajima Kazuko中島 和子

Nakayama Chiharu中山ちはる

Otonashi Kikuko音無喜久子

Saeki Yuki佐伯 雪

Tomoda Junpei友田 順平

Tomonari Mayumi友成真弓

Tsukamoto Nanako塚本かなこ

Oosako Miki大迫美姫

Otonashi Naoko音無奈緒子

Saeki Mariko佐伯 真理子

Sagawa Yuuji佐川佑二

More From Complet's

Saeki Akira
佐伯章

Nakajima Kazuko
中島和子

Nakayama Chiharu
中山ちはる

Otonashi Kikuko
音無喜久子

Saeki Yuki
佐伯雪

Tomoda Junpei
友田順平

Tomonari Mayumi
友成真弓

Tsukamoto Nanako
塚本かなこ

Oosako Miki
大迫美姫

Otonashi Naoko
音無奈緒子

Saeki Mariko
佐伯真理子

Sagawa Yuuji
佐川佑二