MTL - Reborn As a Top Student In the 1990s - Chapter 208 fight

The protagonist of the collapse of the three former civilizations is Dr. Mei. What is the end of logic, the strongest brain, super intelligence, this is the story of the strongest scientist of Honkai with knowledge of the moon becoming the god of science!

- Description from novelbuddy

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 –

Leo is an academic genius who enrolled in one of the top universities in the world for the rich and powerful, but he was born in a common family, which was more than enough of a reason for the other students to mess with him.

10 years searching for his lost sibling.