Transmigrating to a High-Martial World: My System Is a Lunatic

Wu Liang is an orphan from Earth who unexpectedly transmigrates to a high-martial-arts world, where he's also called Wu Liang. He thinks he's about to take off, only to awaken an F-rank ability. Just as his anger reaches a boiling point, a System binds itself to him. A god-tier System? No! It's a lunatic System... and one bizarre mission after another comes his way!