|Relatives||Serinuma Mitsuko (Mother) |
|Drama CD||Nobuhiko Okamoto|
Takurou Serinuma is Kae’s older brother.
Takurou sports a rebellious image with his undercut hair and a couple of piercings on his ears. He is tall and has a medium build.
Takurou is rough to his sister like how he calls her "Chubby" or "Fatty", but he doesn't mean it in a bad way, he still loves his sister, because when the other guys visited her, he came in and played the big brother who protect her and warned them about it. Nonetheless, he can be a bit mean to her, such as when he showed Kae's male friends her yaoi collection despite her attempt to hide it from them all.
Despite being rough to her, he still loves his sister as shown as when the other four guys visited, he barged in and played the big brother who's goal is to protect her.
- He is traumatized by Mutsumi. It is shown in the twelfth episode that as Nanashima brings up that Mutsumi is interacting with Kae, he was worried and would do anything to stop him.
- "Otaku are gross!" (about Kae)