Without a master

Ato is a puppet left without a master. This master's name was Yuto. Yuto's experiments were illegal in Inazuma, they were forbidden. He did experiments not only on puppets, but also on humans. Ato could only have lived with his master for five years. In the last two years, Yuto began to go crazy, became obsessed with experiments. Yuto was killed by Ato himself. There was a fire, his experiments were destroyed along with him except for one of his creation - Ato.