The Undefeated Duo

Yutaka Mishima is a young man with a profound love for martial arts. Although he possesses exceptional eyesight and sharp instincts, his frail body prevents him from competing effectively in the ring. Determined to overcome his physical limitations, he sets his sights on Koichiro Toyama, a genius cornerman who frequently haunts the local gyms. Yutaka pleads with Toyama to become his dedicated second, hoping the trainer's expertise can compensate for his own weaknesses. Toyama is widely known as a miraculous trainer capable of leading any fighter he partners with to victory. However, his brilliant tactical mind is overshadowed by severe personal flaws—he is obsessively greedy for money and struggles with chronic alcoholism. Despite these glaring shortcomings, Yutaka believes that securing Toyama's guidance is his only path forward. Together, they aim for an unprecedented goal: building a flawless, undefeated record to claim the title of the strongest fighter in the country. In their eyes, achieving this unblemished domestic dominance is the fastest possible route to reaching the absolute pinnacle of Mixed Martial Arts.