Misaki Setoyama

...three loosely connected stories. The first is the story of Aina, an aimless 20-year-old seeking connection through whatever shallow means she can. The second is the story of Haruko, a 27-year-old office worker trapped in a joyless cycle of sexual harassment, domestic disturbance, and unrequited love. The third is the story of a nameless gang of high school girls that terrorize the masculine streets of Tokyo like the manifest fury of all womankind. (comicsverse.com)

Haruna Wakagusa (Fumi Nikaido) is a high school student who lives with her mother. Ichiro Yamada (Ryo Yoshizawa) is gay and Haruna's classmate. He is bullied at school, but Haruna sticks up for Ichiro. They become intimate and Ichiro tells Haruna his secret. He found a dead body along the riverside. A new body is soon found. (AsianWiki)