Harry Potter: Dimensional Wizard - Chapter 582: True Objective

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

Winged beasts with a hundred-meter wingspan swooped from the skies above.Bloodthirsty creatures weaved and leapt between skyscrapers, in search of prey.Thunderous beasts shrouded in lightning took steps that shook the earth with each stride.Humans hid, trembling in the city ruins, praying for the protection of the World Tree.Outside the city, a gargantuan tree that eclipsed the sun, opened its eyes.“This is the city under my sanctuary. Leave, or meet your death!”In an instant, all beasts submitted.PS: Mutated Animals + Lord genre!Early-stage main storyline: Tame Mutated Animals and establish power.In the mid to late stages, the protagonist can transform into a human.

Darin was just a simple blacksmith. He wanted a quiet life, a steady job, and maybe enough money to fix the hole in his roof.But fate had other plans.Thanks to an unfortunate mix of coincidences, a ridiculous prophecy, and some very excitable villagers, Darin suddenly finds himself labeled as the reincarnation of an ancient, all-powerful Dark Lord. Now, knights want to slay him, cultists want to worship him, and political schemers want to manipulate him, all while he desperately tries to convince everyone that he is just some guy.With misunderstandings piling up faster than he can escape them, Darin must navigate a world that insists on making him its next great villain… whether he likes it or not.A comedy of mistaken identity, accidental power plays, and one very confused protagonist, I Was Mistaken for the Reincarnated Evil Overlord is a lighthearted fantasy adventure where every denial only makes things worse.

A novel revolving around being transported to another world with an op system. The mc spends his day chasing skirts and doing missions to level up. A standard journey to the top with lots of girls from various animes and games with a twist of that gaming feel (hunting mobs, doing missions).