__Relatives:__ Keiichiro Kamo (Older Brother).

Sadaharu is a close friend of [Jirou Yakuin](https://anilist.co/character/191673/Jirou-Yakuin), being one of the few people Jirou is comfortable being open around. He is paired with Satsuki Kaneyama in their school's Marriage Practical.

Sadaharu is portrayed as being a mild mannered and eccentric otaku who enjoys reading manga, watching anime, and playing video games. Like Jirou, Sadaharu also has lousy luck with women, preferring the women to be "2D" instead of real so they can't end up hurting his feelings. However, it appears that he and his practice partner get along well which indicates that the practical has somewhat improved his social skills with women. Sadaharu is considered to be the series primary comic relief character, having a knack for making light of serious situations by comparing them to similar events found in many Japanese media and pointing out common tropes. He often showcases incredible creativity by imagining himself or others in fictional circumstances that almost appear to break the laws of reality, with his rampant imagination even causing him to the break the 4th wall on a few occasions. Despite his absurd antics, Sadaharu is ultimately a good, kindhearted person and will go out of his way to help and support those he cares for when he sees fit.



Third-year high school student Jirou Yakuin hoped to partner with Shiori Sakurazaka of the same class in the mandatory "Couple Practical" course. In this practical, students must demonstrate that they have the necessary skillset to live with a partner of the opposite sex while presenting a certain level of harmony to the video surveillance that grades them. 
 
Unfortunately, random chance put his slightly subdued self into the practical with the person polar opposite to him, the gyaru Akari Watanabe. Akari on the other hand hoped to be paired with her crush Minami Tenjin. 
 
Their hopes are doubly dashed when they find out that Shiori and Minami are assigned together. Thus, they reluctantly decide to cooperate to reach the top ten, which would give them the right to exchange partners if both couples agree. To that end, Jirou steals Akari's first kiss without realizing what he'd done, while giving a hurried good-bye kiss...

[Profile](https://vims.co.jp/talent_profile_detail.php?id=14)

**Birthplace:** Missouri, United States

**[Website](https://d-snow.blogspot.com/) | [Twitter](https://twitter.com/theDerickSnow) | [Instagram](https://www.instagram.com/thedericksnow/)**

[Instagram](https://Instagram.com/gabriel.martinss/) | [Facebook](https://facebook.com/gabriel.martins.31924792)

Gabriel Martins Oliveira da Costa is a Brazilian actor and voice actor.

__Non-Anime Roles:__
~!- Griffin Gluck (Most of the productions)
- Luke Castellan (Percy Jackson and the Olympians)
- Rubble (Paw Patrol)
- Adam F. Goldberg (2nd voice; The Goldbergs)
- Parker Rooney (Liv and Maddie)
- Richie Rich (Richie Rich 2015)
- Jeremy Birnbaum (Star vs. the Forces of Evil)
- Jack Champion (Avatar: The Way of Water and Scream 6)
- Dae-heon Kim (To All the Boys: Always and Forever and XO, Kitty)
- Young Kakashi Hatake (Naruto X Boruto: Ultimate Ninja Storm Connections)
- Child Vinsmoke Sanji (One Piece Live Action)
- Ethan Morales (Never Have I Ever...)
- Child Nathan "Nate" Drake (Uncharted 4: A Thief's End)
!~

Jirou, a third-year in high school, is forced to live with a gyaru named Akari under a course called the "Couple Practical". In order to be paired with their own romantic interests, they're going to act as a married couple...!? 
Note: Nominated for the Tsugimanga 2020 Award in the Manga Category.

Sadaharu Kamo