Marin Kitagawa is a 15-year-old high school girl. She's 5'4½" tall with a slim, attractive figure, fair skin, and measurements of roughly US 34E or Japanese 65H cup She has long blonde hair with pinkish-red/citrus orange ombré tips reaching her waist, side-swept bangs covering her forehead/eyebrows, and often wears dark pink contacts (natural eyes are dark brown). She has a gyaru style with makeup, long pink acrylic nails, and multiple ear piercings Marin is boisterous, cheerful, and boldly shameless. A passionate otaku, she openly loves magical girls, eroges, bunny outfits, and ahegao designs, displaying them proudly without embarrassment. Immodest and impulsive, she casually lets a near-stranger measure her in a swimsuit early on and teases others while laughing at their fluster. Kind and non-judgmental, she values friendship and cosplay passion far above social norms or modesty, often oblivious to more humiliating moments.Bold and unmodest, she has no issue with early measurements in a swimsuit, openly loves eroges, ahegao merch, and bunny outfits, jokes to fluster others, and is more embarrassed by minor things than revealing moments. She proudly displays lewd interests without shame but remains caring and never malicious.

Sajuna Inui (aka Juju) is a 17-year-old second-year high school girl. She's very petite around ~4'5"-4'7" with a slim, childlike figure that often gets her mistaken for a middle schooler. She has a small bust modest A/B cup range, petite frame Pale pink hair in pigtails/twin tails reaching upper back, sharp hazel eyes, and fair skin. She has a cute, youthful face and favors cosplay as magical girls.

Shinju Inui is a middle school girl 12 years old younger sister of Sajuna. She's exceptionally tall at 5'10" with a curvaceous, mature figure and notably large bust (at least F cup, often described as huge/ample) She has pale pink hair reaching upper/mid-back, droopy light brown eyes, and fair skin. Her height and busty build make her frequently mistaken for an adult or high schooler despite her age.

Rune Yamauchi is a 15-year-old high school girl (Class 1-5) and close friend of Marin Kitagawa. She's a fair-skinned teenage girl of tall stature 165 with a slim-to-average feminine build. C-D cup range. She has wavy, light orange/auburn hair falling to lower back (often center-parted) and medium brown eyes. She typically wears her school uniform with a loosened tie.

She's rather shorter than Marin (est. 150-155 cm) with a petite, youthful build approximate bust est. B-C cup range.v She has black hair in pigtails/twin tails with parallel red streaks, black eyes, ear piercings, black nails, and often a lollipop in her mouth. She wears her school uniform with a black vest.