MTL - I Bound Aizen - Chapter 13

In a world where strength reigns supreme, Leon Xian was nothing but a cripple, mocked and humiliated by his peers. Betrayed, abandoned, and cast aside—his fate seemed sealed.Until he awakened the Limitless Copy System.Steal any talent. Copy any technique. Master any power.With a single touch, he rises from the depths of mediocrity to stand above geniuses. The arrogant elites who once looked down on him? He crushes them with their own techniques. The noble beauty who broke off their engagement? Now, she regrets it.From a sect’s laughingstock to an unstoppable force, Leon’s journey has just begun. Enemies will kneel, beauties will fall, and legends will be rewritten.Watch as the trash becomes invincible!

Michael was suddenly reborn into a another world by a God because of an accidental death. To make up for this fact, the God gave him another life in a fantasy world of swords, magic, and monsters.Unfortunately, it turned out that the world he was reborn into was still stuck in the medieval times. It didn't have electricity, it didn't have proper plumbing, and it didn't have any technology that he was so used to back in his old world.But thanks to the God's blessing and an AI assistant called ChatJK1, he was given the power to MAKE his life comfortable. Slowly, Michael transforms this new world into a place even better than his previous one by taking ideas from the modern world and putting it in this world, with the added bonus of magic.

When she woke up, Lake returned to the classroom of the third year. The classmates were in class with swords and sticks, and the teacher became a female Taoist.
The little fat man in the back seat, how to put two big hammers under his chair.
Rick found this to be a global era!

- Description from Uukanshu (translated)

[The Demon King is Dead], a story in which the Demon King got immediately killed in the Prologue. I became the ‘Demon Prince’ of said novel.

…Help me.