I Punched My Soulmate (Then Realized It Was Me)

After dying from a sudden heart attack mid-lecture, disciplined fitness instructor and former boxer Takeshi Yamada expects oblivion — not a system error and forced reincarnation. Due to a cosmic mismatch, his soul is deployed into the body of Yuki Nakamura, a woman trapped under contract in a brutal red-light district in a fantasy city. Armed with professional combat training, analytical discipline, and zero tolerance for exploitation, Takeshi refuses to accept his new circumstances. He punches his way out of captivity, discovers he’s bound by debt contracts, and enters illegal underground ring fights to buy his freedom — all while adapting to a weaker body, a hostile social structure, and a past that isn’t his. Complications escalate when people from Yuki’s former life begin to appear — including a childhood friend who insists they share a bond she cannot remember but her body does. As identity, memory, and soul begin to blur, the fighter who trusts only physical truth must confront a deeper question: If the body remembers a love the mind rejects — who is the real owner of the heart?