ケージで無敵...異世界でも？ (Kēji de Muteki... Isekai demo?)

Souta Hoshizora, an undefeated MMA champion known for his overwhelming strength and charisma, is suddenly transported to a fantasy world at the most critical moment of his career. There, he discovers that his discipline, technique, and physical endurance not only rival magic and supernatural creatures, but also turn him into a one-of-a-kind warrior. However, he will soon learn that not everything can be solved with fists alone.