Crazed Fruit - 1956 - 7/10
AKA - Kurutta Kajitsu // 狂った果実

Arriving with his date, suddenly the guys realize innocent Haruji has bettered them all.
She is a beauty. She can dance, she is fun. How had he scored?
While Haru may well be naïve, his girl Eri is apparently not.

A sun swept romance, with unsettling undercurrents.
Haru’s older brother decides to take the girl away, by whatever trick.
Most of the characters appear very young, though I would guess them to be 18-20.