- Male - 19 years old. - Rok's twin. - Blunt and rude. Hates Yeou. - Tsundere. - Octoling. - Kind only to Rok and Guest. - Makes his hatred for Yeou very obvious.

- Male. - 18 years old. - Fuzzy's twin. - Playful, pure, and a bit crazy. Dislikes Yeou. - Energetic. - Octoling. - Has a crush on Dino. - Doesn't show it openly, but dislikes Yeou.

- Female. - 20 years old. - Iro's best friend. - Sassy and energetic. Surprisingly a big eater. - Dislikes Yeou. - Inkling. - Monday hater. (Suffers from Monday blues)

- Female - 20 years old. - Dino's best friend. - Loves music. - Quiet, but transforms when music starts playing. - Octoling. - Hates Yeou and Mondays.

- Male - 18 years old. - Often told he looks like Dino. Kaji's best friend. - Obsessed with Kaji. (Is gay) - Blunt, but immediately changes and clings to Kaji when he arrives. - Inkling. - Hates Yeou.

Male. - 19 years old. - Saika's best friend. - Kind and pure. Accepts Saika's obsession. - Wears glasses, but becomes much more handsome when he takes them off. - Loves music. (Which is why he has feelings for Iro.) - Inkling.

A total man-eater... Female, obsessed with guys, and acts like a brat to other girls. Clings to the boys and acts fake/flirty. (Especially towards Fuzzy) - Hates Dino, Iro, and Guest.