Reincarnated as a Failed Villain: Fallen Angel - Chapter 63 Arc 2 - God Of Curses, Lucas!

Revisit the peak of the Olympian lore.... An eighty year old scholar who has been a fan of Greek mythology since childhood finds himself reborn as the titular ruler of the underworld, the death god Hades after a tragic death. But the gods of Olympus are very much different from what the stories say. He will have to navigate through his new life as a god and prevent a coming calamity... All while not getting caught... How does it feel to be a god in Olympus? A tale into the heart of myths.

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

“Didn’t you want me to be with you when you bought me? I’m willing to do it!” said the cold business tycoon. He was unrivalled when he behaved like a bully.

“It's 2025. Who's gonna believe a myth or fantasy anymore? That only exists in the book or game or anime.”And that's how everybody thought before the announcement that flipped the entire world completely.Everybody race to become the new god with the system they got.So, how about the people who don't get the system?( Hey, kid. I can give you some power. Let's make a contract. )