MTL - I Was a Group Pet In 80 - Chapter 1347 as long as you can understand

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

After 10,000 years, it was iced. The Douro’s federal expedition team discovered an egg with a gold and silver two-color pattern during the scientific study in the northern part of the country. After exploring it with an instrument, it found that there were vital signs inside, and he quickly brought it back to the institute for incubation. The egg hatched, but it was a baby, a baby identical to humans, and an egg-born child.

- Description from ptwxz

WARNING: MATURE CONTENT | HAREM | R18+ | COMEDY | ACTION | FILTHY ROMANCE[Ding!][Author Mode Obtained][Author Mode Activated][Welcome, Harem Overlord]After a freak accident, Steve Jobson wakes up inside the world of his own novel—where women dominate society as powerful mages, and men are seen as little more than afterthoughts.However, Steve isn't just any man. Breaking the very rules of this world, he awakens magic of his own and earns the right to enter the prestigious—and formerly all-girls—Arcane Bloom Academy.Armed with the forbidden ability to rewrite the very events of this world, Steve’s journey isn’t just about getting stronger...It’s about taking everything he ever wanted—pleasure, power, and absolute dominance.With a world full of MILFs—women deprived of men for far too long—desperate and hungry for his touch, Steve is more than ready to satisfy them all....From his own busty mother to the head mistress of the academy...Every Milf is his!The story is only just beginning...But somethings, even an author can't predict how a story ends.There will be Smut, Hardcore Harem, Power Progression, Magic Battles, Dark Secrets, Taboo Love, and Severe Degeneracy.Additional Tags: Magic Academy | MILF | Forbidden Love | System | Domination | Reverse Society | Smut | Revenge | Comedy