Ai Shinozaki

Eri is an inconspicuous female high school student who goes completely unnoticed by her classmates. In contrast, her childhood friend Mitsuko is the class leader and is constantly hit on by their creepy teacher, Chida. In order to protect her friend, Eri obtains a funerary rumored to hold ashes that cause certain death for anyone who gets them in their mouth. (imdb)

Three aimless kids at a seaside high school have just one goal this summer break: to shed the virgin tag. One day, they rescue a pretty girl named Narumi by chance. Immediately smitten, Narumi makes it the summer to remember for the boys.