When notorious assassin Toji Fushiguro—the sorcerer killer who abandoned his son—suddenly finds himself with a second child and zero yen to his name, he must choose between his mercenary lifestyle and becoming the father he never was.
Framed and banished to the treacherous Gachiakuta pit at ten years old, a silent but fiercely powerful girl must master her unique vital instrument alongside the Cleaners to survive and uncover the truth behind her exile.
