I Am A Matchmaker on Taobao - Chapter 3:

Renji Kurozawa was just another nobody—until he died and was reincarnated in a world of swords and magic. Summoned alongside other “Chosen Heroes,” he hoped for a second chance at life.But his gift was different. “Death Claim”—the power to steal abilities from those he kills.Betrayed by his allies and left for dead, Renji embraces his dark power. With every enemy he slays, he grows stronger, turning from a forgotten outcast into the most feared force in the kingdom.Now, hunted as a villain and pursued by gods, Renji must carve his own path—one kill at a time.If fate wants a monster, he’ll give them one.

“Teacher, you know me. I’m usually a good student, with nearly 100% attendance, and I’m also eager to help the people.

Yesterday I flew to the coast to fight monsters, so…”

“Teacher, you know me. Which teacher is not full of praise for me, but things are prioritized. Yesterday happened to be the Ghost Festival. Hundreds of ghosts walk at night, so I…”

“Teacher, you know me well. I am an activist in our dormitory. Every day I call them to go to class, but under special circumstances, so…”

“Teacher, I’m a foreigner, I don’t understand what Xie said, and I didn’t know there was a class yesterday, so…”

The teacher took off his glasses and rubbed his temples, “I can tell that everyone in your dormitory has stunts, but this is by no means a reason to skip class! This class! This year! You guys are all done!”

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Another version of the introduction: Ultraman Delta was living in another world for unknown reasons. Originally, he wanted to be an ordinary college student, waiting for one day to find a way to return home.

But the sudden appearance of a monster disrupted his plans, and he also discovered that his roommates were not ordinary people either.

- Description from novelbuddy

In his last life, he was a superstar that dominated the entertainment circle. In this life, he is a rebellious second generation wastrel.

In regards to the MMORPG Cross Reverie, Sakamoto Takuma boasted an overwhelming strength that was enough for him to be called the Demon King by the other players. One day, he gets summoned to another world with his appearance in the game. There, there are two people that insist “I am the real summon master.” Takuma gets slave-turning magic used for summoned beasts cast on him by the girls –