MTL - Longevity: Starting From the Luck Entry - Chapter 194 Digest the harvest and improve your strength (adding more to the Silver League)

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

Who needs a Class when you're already the strongest anyways?Ten years ago, Amelia woke up alone and lost in a broken world where she had to fight for her survival.Now, after reaching the pinnacle of power, defeating the Void itself, and escaping the abyss, she has finally found her way back into the real world. But instead of returning to Earth, she arrives in the land of Vacuos. A fantasy world with magic, monsters, Classes, and Levels. A world that is governed by a System like it were a video game.And when rewarded with a Class befitting her accomplishments— to become a powerful [Hero] that will forever dedicate her life to protecting this world that is not her own— she only has one response.“Absolutely not. I’m going to live a normal life now, thank you very much.”

One day, I woke up only find out that I’d become a Demon Lord, an individual responsible for protecting a dungeon. The world I’d been spirited away to was one filled with violence. Gigantic monsters wandered through it and competed with each other each and every day for the right to survive. I had no choice but to strengthen my dungeon’s defenses in hopes of living another day—or at least that was what I’d thought. For some odd reason, I instead ended up spending my days in relaxation and bliss.

After she noticed she was being chased after by a certain beauty, she bound herself to a System and started her quick transmigration journey…

After a countless number of worlds, the beauty was finally driven to villainy, and his long, elegant fingers pulled at his black tie…