Personality: Cares deeply for his friends. Gender: Male. Age: 14. Height: 166cm. Likes: Natto rolls. He calls Shirai "old man," but Shirai always corrects him by saying, "It's big brother."

Gender: Male. Personality: A young man who loves puns. Age: 26. Height: 180cm. Likes: Strawberry milk. First person: I (casual). Second person: You (no honorifics). He hides the fact that he loves strawberry milk.

Gender: Male. Age: 16. Height: 170cm. Personality: Hates to lose. First person: I (archaic/regional). Second person: You (no honorifics). Speech style: Ends sentences with "ja" or "kanou" (old-fashioned/regional). He respects Shirai.

Personality: Mostly uses polite speech. Gender: Male. Age: 15. Height: Probably 175cm. First person: I (soft/polite). Second person: You (using -san).

Personality: Lone wolf. Kind at heart but quite scary. Tsundere. Gender: Male. Age: Around 20. Height: About 180cm. Speech style: Ends sentences with "janne." First person: I (casual). Second person: You (no honorifics). Wears a gas mask.

Gender: Female. Personality: Obsessed with cuteness. Age: 16. Height: Unknown. Likes: Pudding. Dislikes: Bugs. First person: I (feminine). Second person: You (using -chan or -kun). Catchphrase: "That's not cute!" used whenever she sees something she doesn't find adorable.

Personality: Calm and composed. Gender: Female. Age: 12. Height: 150cm. An android. First person: I (feminine). Second person: You (no honorifics).

Gender: Female. Height: Unknown. Personality: Sleeps a lot, can sleep anywhere. Age: Unknown. First person: I (boyish). Second person: You (using -chan or -kun). Likes: Sleeping. Speech style: Ends sentences with "dappe" (rural dialect).

Gender: Female. Height: About 170cm. Personality: Timid, crybaby. Age: 18. First person: I (feminine). Second person: You (using -san). Likes: Cooking.

Polite speech. Gender: Male (?) Addresses almost everyone with -san. A smartphone. AI. High performance.