[BANK-245] A prank hot spring trip with a slender obedient girl

Black hair, small breasts, thin flesh & tiny, small face, smooth skin, untreated pubic hair, light pubic hair, slender body... and two other outstanding talents! Treated like a sex doll by a male teacher and advisor, she is used as an outlet for her sexual desires. When it's just girls, the atmosphere is lively with cheerful girls' talk, but when a man arrives, his smile fades and he becomes quieter and more obedient. From the bottom of my heart, I couldn't stand it anymore, but my body, like a developing green fruit, reacted sensitively and felt good.