"Hey, lend me your mother." The price for my son's mismanagement was endless gang rape...

Arika married a man with a stepchild. However, her husband dies in an unexpected accident and is left alone with her stepchild Kazuhiko. Meanwhile, Kazuhiko, who doesn't like his mother, suddenly, can't accept his father's death honestly, and by attacking her, he escapes from reality. One day, when such a rotten life continued, his classmate Sanada discovers this fact. Kazuhiko begs him to keep it a secret, but the bad boy Sanada confronts him by saying, "Then, your mother, please lend me yours."