I Changed Class into One-Punch Man and Became the School Belle’s Ideal

In an age when everyone can change careers, monsters run rampant and secret realms are everywhere. After transmigrating, Qing Yu becomes a “D-rank Class: Hero for Fun.” While everyone else thinks Qing Yu is a washout because of his D-rank class, only Qing Yu knows the truth. “A hero for fun? Isn’t that just the bald demon king! “Who cares what kind of opponent they are? I’ll knock them all out with one punch!” … I’m Liu Xiyue, the campus belle of Tianzhou Academy. Our team has run into a demon god in a secret realm. We’ve suffered heavy losses, and things are about to go badly… What do you mean Qing Yu is standing in front of the demon god? He’s only D-rank. Has he lost his mind? What? He killed the demon god with a single punch? As expected of the man I chose. He really knows how to surprise me! I’ll keep helping him level up until he becomes the one and only king of this career-changing age! [P.S. Lighthearted romance, leveling up, brisk pacing, complete story.]