matsudora124, himeno mikoto, himuro hitoshi, kaga tsuyoshi, kajiro yuka, kirisaki shouta, kaii shoukougun, 4boys, 4girls, black hair, black serafuku, black suit, blue eyes, blue hair, blunt bangs, brown hair, coat, collared shirt, formal clothes, grey hair, hair ornament, hair ribbon, heart, heart hair ornament, jacket, kaii shoukougun 3, kajiro haruko, kanamori hinako, kogure shinichi, lab coat, long hair, multiple boys, multiple girls, necktie, ponytail, red necktie, red ribbon, red vest, ribbon, school uniform, serafuku, shirt, short hair, short ponytail, siblings, sisters, smile, suit, vest, white coat