Naruto: The Outsider's Resolve - Chapter 6.14 (185)

He became a teacher at the best magic academy in the empire.
….For being mistaken for someone else.

Alex Jin was just another overworked nobody until a truck crash sent him into the body of Valerian Nightshade—the cold-blooded villain from a popular fantasy novel. Destined to die early as the stepping stone for the “hero,” Valerian was powerful, rich, and feared… but ultimately doomed.That is, until the Villain Evolution System activated.Now, every villainous act rewards Alex with unimaginable power. Crush a rival? +100 Strength. Manipulate a noble house? Unlock a rare bloodline. Kiss the heroine meant for the hero? Well... let’s just say the rewards aren’t all measured in stats.To survive, Alex must outwit plot armor, bend fate, and ascend to the throne of power in a world that expects him to lose. But the deeper he goes, the more he realizes—being the villain might be the only way to save this twisted world.This time, the villain won’t die early. He’ll rewrite the story, one ruthless step at a time.

Xia Yan passed through to the world of Bleach and became an eleven-year-old boy. He was rescued by Renji and Rukia in the Seireitei, and he was studying at Shin’ō Academy, and he was a student of the same class.
He is a top student of the Shin’ō Academy, and he is vying for strength by various teams. In the end, he has entered the first team of secret mobile maneuvers.
He will use punishment to kill every person who tries to threaten the martyrdom and protect his loved one.

- Description from Novelupdates

Having brought up her younger siblings in troubled times and guiding her younger brother to the throne, Xia Wanyuan is the most legendary eldest princess in the history of the Xia Dynasty.When this eldest princess opens her eyes, she finds herself in a world a thousand years into the future. While she is still called “Princess”, it's only a nasty jeer imparted on her as a mockery for her arrogant connections within the entertainment industry. So what if you were rich? In the end you've fallen to a status far lower than any beast!In response, Xia Wanyuan promises that a day would come when they will sincerely call her Princess. Everyone laughs at her, waiting to see the day when she'll be abandoned by the wealthy and affluent.Handsome yet aloof, President Jun Shiling is known only for his success in the corporate world with a demeanor cold enough to cut through ice. He has just one thing to say: Take the one hundred million divorce fee and leave quickly.Two years later, the eldest princess is a two-time winner of a prestigious acting award. The darling of the fashion world, she has become a style icon who is also proficient in the four classical arts. As an all-knowing professor in both literature and poetry, she is also a professor in two departments at the most renowned institute of higher learning. The Olympics? Gold medals are a dime a dozen when considering her skills in fencing and shooting. Her name is spread all over the world and she is filled with an unprecedented glory never bestowed upon any other.The CEO who wanted a divorce at the start refutes on television: “How dare anyone spread rumors about our divorce? My dearest wife, can we have another child?”