I Punched Yujiro Hanama Until He Started Crying

Lin, a fighting manga enthusiast, transmigrates to the world of "Baki." Thanks to the [Pain Evolution System]—which allows him to quickly evolve and master attack techniques by enduring non-lethal attacks—he embarks on a path of revenge, further enhanced by his "talking trash" ability. Upon entering the Tokyo underground fighting arena, he becomes known as the "King of Tough Tactics," using provocation to draw opponents' full-force attacks and secretly learning basic fighting techniques.

To become stronger, Lin pesters Hanayama Kaoru as his sparring partner, evolving through the torture of grip strength; he challenges Retsu Kaioh to learn "ki" and martial arts; he deliberately goes to prison to provoke Oliva, honing his muscle strength; he encounters the primitive man Pike, comprehending his wild instincts. He is both a fighting fanatic and a "CP leader," pairing up Retsu Kaioh with the nurse, Hanayama with Misaki, and other couples, repeatedly getting beaten up but still enjoying it.

Witnessing Yujiro Hanma's absolute power, Rin set his ultimate goal. He persuaded Retsu Kaioh, Jack, Oliva, and other powerful figures to form a "sparring team," using himself as a "testing ground" to integrate various techniques. In the final battle at Tokyo Dome, Rin unleashed "Universal Unity," a technique that combined the essence of all the powerful figures, defeating Yujiro with the power to "unite all human possibilities."

After becoming the undisputed strongest, Lin announced that he would become the "leader of the sparring team" and "matchmaker for couples," leading the strong to train the younger generation and bringing together newcomers. From an unknown figure in the underground fighting arena to a legend in the fighting world, he writes a unique legend with his witty remarks and perseverance, amidst passionate battles and heartwarming daily life.