A wrestler who is Naoto Azuma's friend. Although they were part of the same Zipang Pro-Wrestling organization, he vows revenge for his father who was critically injured when the organization was crushed by the GWM. He enters the Tiger's Den out of his free will, determined to destroy it from the inside. After undergoing the Tiger's Den rigorous training, he finally becomes "Tiger the Dark." He is currently 21 years old.