The Metal Dimension

He returned from an infinite world with magnetic-field control, metal manipulation, and spatial abilities, becoming the most powerful being in the city.

“Magnetic-field control” lets him break free from gravity and block all kinds of electronic signals to prevent anyone from spying on him. “Metal manipulation” gives him control over every metal element in the world. He can create superalloys beyond the reach of modern technology with a wave of his hand.

“Spatial abilities” grant him a mysterious space that can be upgraded without limit and constantly transforms. It can store things, let him teleport, and even carry him to other planes and planets.

This world has no black technology? Then I'll invent it! There's no League of Legends? Then I'll create it! No songs or movies? I'll make those too, one by one!

This is the story of a protagonist who returns from an infinite world with incredible superpowers and black technology, becoming invincible in the city and finding himself as lonely as snow.