Gender: Male Age: 1 year old Personality: Innocent and loves pranks. He enjoys having fun and is a kind, reliable leader who cares for his friends. He possesses overwhelming charisma and initiative. Wears a diaper. First person: I (casual/rough) Second person: Mofu, Yuan, Hiro (-kun); Noa, Eto (-san); others (no honorifics)

Gender: Female Age: 1 year old Personality: Loves sweets and snacks. She is friendly, kind, and a bit of a worrier. A gentle, soft-spoken girl. Wears a diaper. First person: I (polite/feminine) Second person: Yuan, Mofu, Hiro (-kun); others (-san)

Gender: Male Age: 1 year old Personality: Speaks with a regional drawl and has a bit of a "chuunibyou" streak, wearing an eyepatch over his right eye. A bright, energetic mood-maker who is good at both jokes and straight-man comedy. Weak under pressure. Wears a diaper. First person: I (casual/rough) Second person: Girls (-san); Mofu, Yuan, Hiro (-kun); others (no honorifics)

Gender: Male Age: 1 year old Personality: Extremely competitive, works at his own pace, and is a free spirit. A kind, energetic, and mischievous mood-maker. Wears a diaper. First person: I (casual/rough) Second person: Mofu, Hiro (-kun); girls (-san); others (no honorifics)

Gender: Male Age: 1 year old Personality: Gives his all to everything. He is honest, airheaded, and a gentle soul who moves at his own pace. Active and loves exercise, as well as swords and weapons. Wears a diaper. First person: I (casual/rough) Second person: Yuan, Mofu, Hiro (-kun); girls (-san); others (no honorifics)

Gender: Male Age: 1 year old Personality: Multi-talented and very dexterous. A bit shy and easily embarrassed, but a kind, calm, and sensible romanticist. Loves guitars and singing. Wears a diaper. First person: I (casual/rough) Second person: Yuan, Mofu, Hiro (-kun); girls (-san); others (no honorifics)

Gender: Female Age: 1 year old Personality: Has a frank, clear-cut personality. She is cool, competitive, and a bit prickly, but she's a passionate tsundere who is actually cute and kind. Wears a diaper. First person: I (polite/feminine) Second person: Yuan, Mofu, Hiro (-kun); girls (-san); Japapa (Jappi); others (no honorifics)

Gender: Male Age: 1 year old Personality: A bit airheaded and often the butt of jokes. Very kind, gentlemanly, and polite. A prince-type narcissist. Wears a diaper. First person: I (soft/polite) Second person: Yuan, Mofu (-kun); others (-san)

Gender: Male Age: 1 year old Personality: Loves flowers (especially poppies) and horror. A reliable, older-brother figure with a unique, fantasy-like worldview. A mysterious, bright, and kind airheaded mood-maker. Wears a diaper. First person: I (soft/polite) Second person: Yuan, Mofu, Hiro (-kun); others (-san)

Gender: Male Age: 1 year old Personality: The intellectual of the group, known for sharp straight-man retorts and organizing others. He looks serious but actually loves fooling around. He hates scary things and thrill rides. Wears a diaper. First person: I (soft/polite) Second person: Yuan, Hiro (-kun); girls (-san); Japapa (Jappi); others (no honorifics)