I Have a Sword That Can Cleave the Sun and Moon

Jing Yan was once the most gifted genius in the Jing family. At sixteen, he broke through the ninth level of martial arts and entered the innate realm, with no equal in the entire city of Donglin. Yet, for no apparent reason, his cultivation plummeted after he entered Shenfeng Academy, turning him into a laughingstock. After unsealing the Qian Kun Ring, he rises again and eventually reaches the pinnacle of martial arts!!!