MTL - I’m In Konoha, Life Becomes a Game - Chapter 8

Is Magic really just a wish machine? No! In a universe where Magic truly exists, the ultimate nature of Magic must be as simple and aesthetically pleasing as the laws of physics. This is the story of a mass-produced magical war tool who learned the ultimate nature of Magic. But what of it? Just as birds can fly without understanding aerodynamics, magicians can use Magic without grasping its ultimate nature. Learning the ultimate nature of Magic doesn’t mean the tool can instantly transform into a great magician. But yearning for knowledge is a human instinct, and curiosity is the primary driving force of human civilization. Even for Magic, which should seemingly defy explanation, humans hope to understand its inherent operational laws. The pursuit of Magic’s ultimate nature requires no reason! The story in this book takes place in an era where steel and gunpowder dance together. Here, firearms are on the rise; armor remains the main character; military theory is changing rapidly, with endless innovations in systems and techniques. And this world has something more than ours: Magic. The world is undergoing a profound transformation, and no one can remain detached from it...

Keiran has always dreamed of being a hero—exploring vast worlds, defeating powerful foes, and growing stronger with every battle.In his favorite RPGs, he could live that fantasy. But when he's suddenly summoned by the god of Eteria, his dream becomes reality.Chosen to stand against the encroaching darkness threatening to consume the world, Keiran is granted four extraordinary abilities: the power to absorb, upgrade, create, and transfer skills.With limitless potential at his fingertips, he embarks on an adventure to collect, refine, and bestow incredible powers upon allies and himself.As he hones his abilities, forging new paths in magic and combat, Keiran will shape Eteria’s fate.From a summoned gamer to a legendary hero, he will not only fight the darkness—he will redefine what it means to be powerful.

There are a total of seven sins, and a revelation is made to a young man named Alex that he is destined to become a demon lord, more especially a demon lord of sin called LUST.

It's not like he can change that and because he always knew something about himself was different—not in a physical sense, well, maybe a little—and not in a mental sense—but rather because he is thrown into a demonic war that compels him to accept his new reality.

He was only aware of a difference in himself. Relating to him and the ladies who are drawn to him... Well, it was more or less like he was a magnet in front of all the girls, and all the girls were drawn to him like a metal.