If the Deep Sea Forgets You - Chapter 12

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

Lingyun, a fierce and savage cultivation genius takes over a dead teenager’s body. Coincidentally, they are both named Lingyun. Set in a alternate version of the 21st century, teenager Lingyun has been killed by someone with a grudge.

- Description from Novelupdates

Hugo Fernandez, a short, skinny virgin with zero charm, was a young man with grand dreams. He had just started college and was brimming with hope for a bright future, but a rather unfortunate food poisoning ’incident’ soon turned his life from bad to worse. He experienced a social death! Out of the blue, a mysterious girl’s voice echoed in his head: [Ding! Fate has aligned, and your woeful destiny with women has reached the heavens! You have been granted the Ultimate Harem System!!!] Hugo’s listless eyes widened. Had he finally received his own cheat code? Was it time for him to ascend to the heavens in a single leap and start attracting women left and right? The mysterious voice spoke again: [Ding! Initialising Death mission... Seduce a 7+ woman within one month or die!] Hugo blinked, his jaw dropping. “Wait, what? Seduce a 7+ woman or die? What kind of medieval torture is this? I can’t even seduce my reflection!” After taking a minute to calm down, he realised it wasn’t as bad as he thought. “In the worst case, I can burrow some money and get a pro-” [No pay pigging] Hugo realised he was soon going to experience a real death! This system was out for his blood! [Tick tock, Romeo. Time’s wasting…] “I’m gonna die!” Join Hugo on a captivating, deadly journey filled with debauchery, womanising, and thrilling level-ups as he rises above all and becomes a Supreme Casanova! If he doesn’t die first, that is…

A campus bullying incident led Chu Feng to receive a message of Rong Yun’s suicide after ten years.

Rong Yun’s relic is a novel based on him…

At this point, he came to know that Rong Yun had always liked him.

In deep regret, Chu Feng returned back to high school.

This time, he wants to protect Rong Yun, his achievement and let him have a different life.
At first, he only wants to compensate for his mistakes, but he didn’t know when his compensation become’s true love.

- Description from Novelupdates