Toma is appreciated by many people because he doesn't hesitate to help someone, no matter what the problems, he can always find a solution.
In addition to that, he excels in all materials and marts matiaux.
[spoiler]Before the death of his father Toma was a perfectly normal student, until his father eventually became violent. At that moment, Everything has changed, Toma wanting to protect her mother from his father has learned self-defense techniques and it's also set to spend everyday learning everything he can find under his hands.[/spoiler]

Cooking, Martial Arts, Teasing, Unarmed Fighting, Athletics, Swimming, Wedding

Accident, Injury, Teasing, Discrimination

Husband, Boyfriend, Teacher, Classmate, High School Student, Honor Student

Toma Sazuko

Hibi is a very shy person who always has trouble expressing herself to someone she doesn't know.
[spoiler]When she meets Toma for the first time, she immediately tries to avoid him because since then the humans have committed a lot of atrocity to her race.[/spoiler]

Deredere, Timid, Kind, Possessive, Smart, Jealous

Wife, Twin Sister, Kouhai, Demon, High School Student, Younger Sister, Older Sister, Library Committee Member

Hibi Nazako

Violet, Long, Eye Covering, Side Tail, Ringlet, Parted to Side, Sidehair

Annel is a very energetic person.
Not being able to control everything yet has made it strong, she often leaves behind objects break.
[spoiler]Despite their appearance and race difference, Annel is Juri's twin sister.[/spoiler]

Twin Sister, Sister-in-law, Senpai, High School Student, Younger Sister, Bovine

Annel Okaha

Annys is the mother of hibi.
Very protective towards these children, she does not hesitate to reprimand Toma when he does something that could displease Hibi.
[spoiler]A little later, she considers Toma to be her own son after saving these children.[/spoiler]

Tsundere, Deredere, Strict, Arrogant, Kind, Genius, Blunt

Wife, Mother, Demon, Housewife, Mother-in-law

Annys Nazako

Hiba is Hibi's twin sister, she loves her sister, especially her reaction when she tries to get closer to Toma.

Daughter, Twin Sister, Sister-in-law, Demon, Younger Sister, Older Sister

Hiba Nazako

Hina is Hibi's younger sister and Hino's twin sister.
Despite her age, Hina is very intelligent but her feignantism prevents her from being a model student.
When she meets Toma for the first time.she see him as a rival in regard to the different subjects learned in course.

Daughter, Twin Sister, Sister-in-law, Demon, Middle School Student, Younger Sister

Hina Nazako

Hino is Hibi's younger sister and hina's twin sister, when she meets Toma for the first time, she sees him as a rival in sport and always wants to play with him.
[spoiler]When Toma saves Hino, Hino immediately falls in love under of his savior and calls it TomTom[/spoiler]

Kind, Energetic, Sweets Lover, Brother Complex

Hino Nazako

Hiromi is the little sister of hibi, she hates humans since what happens to them arriving on earth.
Like Hibi, when he meets Toma, she will be suspicious of him, and then little by little will begin to appreciate it.
[spoiler]When Toma comes to save Hiromi and these sisters, Hiromi immediately falls in love with Toma, but does everything so that it does not see it.[/spoiler]

Tsundere, Arrogant, Kind, Brother Complex, Blunt

Sister-in-law, Demon, Middle School Student, Younger Sister, Older Sister

Hiromi Nazako

Juri is a brilliant student who became the chair of the student council after succeeding in class S.
[spoiler]Despite the appearance and race difference, Juri is Annel's twin sister.[/spoiler]

Teen, Slim, Pale, Kemonomimi, Multiple Tails, Furry Tail

Hard Worker, Stubborn, Smart, Serious, Jealous

Twin Sister, Girlfriend, Student Council President, Senpai, High School Student, Fox, Older Sister, Honor Student

Imako Juri

Mayako is someone who doesn't like school but loves sports.
Hibi's best friend, she won't hesitate to hit Toma if he tries to try anything.
[spoiler]Despite the fact that she resists her succubus nature, she can't help but want to find another man to be able to perfect her harem.[/spoiler]

Teen, Slim, Pale, Horns, Bat Wings, Demon Tail

Modern Tsundere, Shy, Cautious, Energetic, Vindictive, Jealous, Moody, Blunt

Mayako Ai

Tsukisa is the big brother of hibi, very protective towards these sisters he does not hesitate to have resorted to the violence if necessary.
[spoiler]When Toma saves these sisters, tsukisa recognizes him as part of a family member, and calls him TomTom[/spoiler]

Tsukisa Nazako

A week passed since the request for the marriage of hibi, everything happens marvelously good between Toma and Hibi, until the day when Hibi receives a call from his mother saying that she and are father, sisters and brother come to see Toma to see if he is fit to become a member of their family.
How will Hibi's family react to Toma?
Will the marriage take place?

Monster School~ Ecole de monstre