As Aizen in Naruto and Joined a Chat Group - Chapter 214: The Truth

Ye Yang, the son of the Ye Family in Eight Desolate City, was once regarded as a genius. He could awaken his Dantian at the age of three and reach the third level of Qi Condensation at the age of five. But after a few years, He was seen as a person without talent because his cultivation was still stagnant at the age of 16. One day, He was framed and kept in a coma after he was rescued.

Ye Yang was originally an instructor in a special troop. He was 21 years old and sacrificed his life to protect an unknown broken sword which was found on Everest. When he woke up, he became Ye Yang from the Eight Desolate City, unexpectedly obtained the recognition of the broken sword and learned the mysterious cultivation method “God Slaughtering Technique”. He then embarked on a path of cultivating through slaughter.

When he was reborn, he swore, “I won’t let those who offended me off.” He wanted to reach the peak step by step, and also carried the mission to uncover the secret behind the Nine Heavens Mysterious Sword.

- Description from Novelupdates

In 1892, in the Scottish Highlands, Hogwarts Castle.Just as the freshly graduated William Richard “reluctantly” accepted the offer from Headmaster Blake to take the job of teaching Defense Against the Dark Arts—he traversed through time once again and found himself in London a hundred years later.Upon receiving another owl from Hogwarts, he didn't hesitate much, and to continue learning his beloved magic, he once again enrolled as a rare fifth-year transfer student at Hogwarts over the past hundred years.Albus Dumbledore: Although I don't know why William keeps murmuring things like “I held you when you were a child,” putting that aside, he really is a diligent and studious good child.Sorting Hat: Az— Mmm...Tom Riddle: Shut up! How dare you call that great one's name directly?Harry Potter: Though Mr. Richard said he uses Unforgivable Curses as lighting spells and has built a tower of troll and goblin heads, I believe he must be a good person.

A generation of hegemons, betrayed by betrayal, besieged by forty-nine strong men, tragically killed and robbed the mountain, re-lived once, he will re-enter the peak; strong rise, into the chaotic star field, exhausted 100,000 strong, Wusheng dead and kill, The impact is high!

- Description from 69shu translation