Bootsleg

At seven years old, Zen's parents, sister, and left leg were ripped from him by the mysterious entity only known as Shake Hand. And he's not the only one—in the seven years after, these "handshake" incidents have only increased, and others have lost, too. But Zen is powerless to do anything about it... until, that fateful night, when they meet again... An oversized, action-packed new series from the author of Yozakura Quartet!

Source: Kodansha USA