Shanhai City: He’s a Couch Potato at the Top of the Food Chain

[This story is fictional] [Supernatural powers + protection + one female lead + keeping a low profile] [The protagonist is theoretically invincible, but real-world limitations (his body?) hold him back for a long time, making it difficult to predict how strong he’ll be when he fights.] * Beneath the glittering neon of the city live human martial artists, Shan Hai clans, and mixed-blood descendants of the two peoples. Awakening from thousands of years of slumber, all he wants is to lie flat at the top of the food chain shared by all three races and be a lazy fish fed by his wife. But as it turns out, even a lazy fish has to fight! * A new student arrives at Shan Hai Academy, from the Xuanyuan family, one of the Eight Royal Bloodlines. But rumor has it that he grew up as an illegitimate son in the ordinary Lin family, a wealthy household in a second-tier city, after being abandoned there as a child. What a miserable, embarrassing backstory! The Eight Royal Bloodlines are so powerful that the students talk behind his back but wouldn’t dare cause trouble to his face? Yeah, right! He’s got the weakling body of “Lin the Delicate” and the mouth of “Lin the Comeback King.” He’s also a lazy fish with no ambition, set on lying flat and dreaming of marrying a swan. And so the most useless heir to an Eight Royal Bloodline in history was born. Known as “Lin the Comeback King, all bark and no bite,” he runs wild through Shan Hai Academy, making enemies of everyone. New student: “…” Everyone thinks I’m useless, but I’m actually ridiculously good at fighting!