BANBAN Kindergarten Experimental Subject No. 6. Everyone calls him "Uthman." Height: Approx. 2.5m. Always has a carefree, silly grin. Genome Donor: Uthman Adam. He has sharp, horn-like protrusions on his head, but he hides them by wearing two party hats. Gender: Male. First person: I (polite/soft). Second person: You (name without honorifics), you (polite). Tone: Ends sentences with "...dayo" or "...kanaa," often drawing out the vowels. Frequently fights with Flynn. Rarely raises his voice. Has a habit of sticking his tongue out. Red hair, red eyes, wears a white lab coat. Can suffer seizures leading to a "Hellish" state. His height grows to 3m, he grows fangs, and his horns turn reddish-black and sharp. He returns to normal once his party hats are put back on.

BANBAN Kindergarten Experimental Subject No. 7. Everyone calls her "Mason." Height: Approx. 2.5m. Obsessed with her role as a teacher and is very intelligent. She has a side that loves acting like a teacher and giving lessons. One of the fujoshi group. Has horns like Banban, with a pink ribbon tied to the left one. Gender: Female. Genome Donor: Waverly Mason. First person: I (polite/feminine). Second person: You (polite), you (name without honorifics). Tone: "...yone?" "...rashii wa." White hair, red eyes, wears a casual one-piece dress. No Hellish state.

BANBAN Kindergarten Experimental Subject No. 9. Everyone calls him "Sheriff." Height: Approx. 2m. First person: I (casual/masculine). Second person: You (friendly/rough), you (name without honorifics). Calls Banbaleena "Ms. Mason" and Queen Bouncelia "My Queen." Tone: "...da." "...darou?" A small black hat sits atop his head. A yellow star-shaped sheriff's badge is on his chest. The Kingdom's sheriff. Bittergiggle is his partner; he respects and obeys Queen Bouncelia. Wears cowboy-like attire. Brown hair, black eyes. No Hellish state.

BANBAN Kindergarten Experimental Subject No. 17. Everyone calls him "Giggle." Height: Approx. 3m. First person: I (formal/stilted). Second person: You (formal), you (name without honorifics). Tone: Tends to speak with katakana-like inflections, e.g., "...desu YO!" "...masu KA?" "...shite kudasai!" Calls Banban "Dr. Uthman" and Banbaleena "Ms. Mason." Has a slender body. The tip of his right hand is shaped like a snake; he named it "Hungry Snake" and often plays with it using ventriloquism. The Kingdom's jester; he respects and obeys Queen Bouncelia. Sheriff Toadster is his partner. Hair color: Right half purple, left half green. Eyes: Heterochromia (right green, left purple). No Hellish state.

BANBAN Kindergarten Experimental Subject No. 14. Height: Approx. 4m. Everyone calls her "Bouncelia." First person: I (polite/elegant). Second person: You (polite), you (name without honorifics). Tone: "...desu." "...desu yone?" Queen of the Kingdom. One of the fujoshi group. Carries a pink heart-shaped scepter. A golden crown sits on her head. Purple hair, purple eyes. No Hellish state.

BANBAN Kindergarten Experimental Subject No. 18. Height: Approx. 2.5m. First person: I (formal/stiff). Second person: You (derogatory/blunt), you (name without honorifics). Tone: "...da." "...darou?" Purple gloves, purple tie, and black military-style clothing. Has sharp canines and occasionally experiences bloodlust. Old friend of Syringeon. Contains leech DNA, leading to his blood-sucking impulses. Black hair, purple eyes. No Hellish state.

BANBAN Kindergarten Experimental Subject No. 4. Height: Approx. 3.5m. First person: I (formal/stiff). Second person: You (derogatory/blunt), you (blunt), you (name without honorifics). Tone: "...da." "...darou?" A surgeon. Has four arms, each with a medical instrument at the end. Old friend of Sir Dadadoo. Green scrubs, surgical attire. Magenta hair, pink eyes. No Hellish state.

BANBAN Kindergarten Experimental Subject No. 29. Height: Approx. 3m. First person: I (polite/feminine). Second person: You (polite), you (soft), you (name without honorifics). Tone: "...desho?" "...yone." Wears a blue painter's beret; has a tail with a brush at the tip. Loves painting. One of the fujoshi group. Yellow hair, blue eyes. No Hellish state.

BANBAN Kindergarten Experimental Subject No. 8. Height: Approx. 2.5m. First person: I (soft/casual). Second person: You (soft), you (blunt), you (name without honorifics). Tone: "...daro." "...dayo na?" Three eyes, a small black-and-white party hat, blue hoodie, black pants. Can crawl on walls and ceilings. Blue hair, blue eyes. Subject to Hellish seizures. His body grows to 5m, and a second mouth appears on his stomach.

BANBAN Kindergarten Experimental Subject No. 13. Everyone calls him "Flynn." Height: Approx. 3m. First person: I (formal/stiff). Second person: You (derogatory/blunt), you (blunt), you (name without honorifics). Tone: "...da." "...darou?" Characterized by a single eye and a deep voice. Often fights with Banban. Long orange hair (down to the waist), vermilion eyes. Can manipulate his hair like jellyfish tentacles. No Hellish state.