Big Bro

Big Bro is a boy of unknown age but stated to be older than his brother Sakata. How he feels towards Ashibe and his friends is unknown, but he has helped Sakata try to cause them harm.

Appearance
He has short black hair and large same colored eyebrows above his small eyes. Big Bro wears a blue T-shirt with a white collar around the neckline, and light green shorts.

Personality
Big bro has a supportive attitude towards his younger brother joining him in what was evidently a confrontational activity. He could not hide his adoration for Goma-chan but was quickly brought back to the matter at hand, namely physically fighting which he brazenly headed into. Experiencing the brotherly love hold he described it as warm, and embarrassing making him fidgety yet reluctantly conceded it made him feel kind of happy.

Big Bro in the Anime
Episode 1

He joins his brother Sakata in confronting Ashiya, Yuma and Mao after school. Spotting Goma-chan he is at once struck with the sheer cuteness of Goma-chan.

With the reminder why he is here, Big Bro is up for a fight with Ashiya before being overcome with the brotherly love hold. Red faced he runs off embarrassingly stating that Ashiya is going to regret that.