anba kohaku, natsu (blue archive), blue archive, 1boy, 1girl, :<, ahoge, all fours, black hair, black sailor collar, black skirt, black thighhighs, blush, bright pupils, cardigan, face in ass, faceless, faceless male, grabbing another's ass, groping, halo, long hair, long sleeves, neckerchief, open mouth, panties, pink hair, pink halo, pleated skirt, red eyes, red neckerchief, sailor collar, short hair, side ponytail, skirt, smelling, smelling ass, steaming body, thighhighs, underwear, white cardigan, white panties, white pupils