Takaoka, Kentarou

高岡拳太郎 / ケン高岡 / イエロー・デビル

He is a 15-year-old Japanese boy who decides to enroll in the Lair of Tigris to take care of his sick mother. However, during his training, his mother dies, and Mr. X selects him to assassinate Tiger Mask. Consequently, Ken's hatred for Naoto grows until he wants to face him in a fight to the last drop of blood. In the end, Naoto succeeds in making Ken understand who the true villain is (Mr. X). Thus, the Yellow Devil becomes another inseparable friend of the Man Tiger. The person injured in the crash with a sicario from the Lair of Tigris will end (though in reality, it is Great Tiger) his wrestling career.