a j-cup reverse bunny girl defiled by 10 ejaculations in a ring! inside a crowded train heading to a halloween party. mikan, a college student who is usually plain and shy, was forced to wear a revealing cosplay by her outgoing friend. a different, open atmosphere than usual... in a car overflowing with noisy young people, even if there is some skinship, no one pays attention... help doesn't come to mikan, whose erotic cosplay was discovered and became the target of molestation, and she is also molested at will by men who joined in with bad intentions...