New Times, New Hell - Chapter 40 - Obsession

[You have entered the dungeon at Gwachun Station’s 1st Exit.] When former high school student Kang Woojin finds himself returned back to Earth after being forcibly summoned to a foreign planet for 20 years, he soon finds that Earth is not the same, normal place as he once remembered it to be.

A teenager named Evan Mason was reincarnated into the magical world of Harry Potter and goes to school at Hogwarts!
With only his knowledge of the future and great talent for magic, he takes the path towards the top of the magic world, only to realize that ever step he took, changed everything!

- Description from Novelupdates

My method in getting stronger is very simple—eating.I just need to eat artifacts.I've regressed, so I'll be able to eat as much as I want now, right?

The whole people cross the border of mountains and seas.

Start a thatched hut, build a house, farm, and raise exotic animals?

Su Mu, who was reborn, said, I just want to live in peace and quiet.

Every day, I take a thousand-year-old strange beast for a walk, and a ten-thousand-year-old giant beast for a walk.

Occasionally go fishing for a few mermaids and come back, the days are free and comfortable.

When I get bored, I kidnap a dragon girl and come back to play with it.

Hey, I’m just playing….!

- Description from novelbuddy