MTL - Supreme Demon - Chapter 3368 Melee invincible!

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

He emerged from Hell Tower, one of Earth's most mysterious four forbidden zones, known as the Infernal Black Emperor who strikes terror into the hearts of his enemies!He is also the master of the Yin Yang Divine Needles, instilling fear into the Western world as the Eastern Divine Physician, with the ability to save lives with his left hand and take them with his right!Upon returning to the city, he marries the beautiful CEO of the Eastern Group, only to face his father-in-law's regret at the doorstep.'I excel at two things, saving lives and taking them; the ones I choose to save, not even the King of Hell dares to claim, and those I choose to kill, not even the Heavens can save!' —— Ye Xuan

Some say that the financial war in City C was a bloody sacrifice prepared by Atlas Hallow's ex-wife for the child who died in her womb.The most ridiculous experience in Charlotte Miller's life was being forced to marry the man who should have been her sister's husband.After the marriage, she asked Atlas Hallow more than once, “Why me?”He pressed her under him, a deep and unfathomable smile in his eyes, “The Miller Family lost me a bride, shouldn't they compensate me with another one? Mrs. Hallow, I've never made such a bad deal in my life.”

Space, System, Treasure, Spirit Tools … other protagonists all have golden fingers, Shi Qing: this young grandpa [Xiao Ye] is a golden finger.

It’s just that …he is now a golden finger and even more importantly bound to a host?

And so this host, has a backstory resulting a bloody darkened heart and soul, truly a psychopath!

A psychopath I can endure, but I also have to work together with the psychopath through different worlds, can I endure?

Ancient times, modern times, apocalypse, futuristic….

Traveling throughout the worlds, Shi Qing thinks the host isn’t as bad as he imagined? Strange.

- Description from Novelupdates