Renji Sato knows the taste of the canvas better than anyone. In Tokyo's amateur fighting circuit, he is known as "The Punching Bag": a young man with encyclopedic technical knowledge, but trapped in a mediocre body that refuses to obey. On the verge of giving up on his dream, a night cleaning ...

After recovering from a serious illness, Hina Yamada inherits a magic ring from her comatose brother. The power to influence the luck and misfortune of others, which she initially uses to help her friends, soon proves to be a dangerous weapon when anger drives her to use it for revenge. With her ...