I'm looking for a colored manhwa or manga (genre: reincarnation) where an old wizard lives in an age with no sign of science. He seems to be living in the medieval age.
The wizard and his two servants are cooking food in the mountains. Both servants are oni, one male and one female. They had attacked the old sorcerer and lost to him a few years ago, and then they became his servants. They now live with him, disguised as humans.
After a few years, the old wizard is attacked by other oni for some reason. His two servants try to protect him as best as they can, but the old wizard dies and gets reincarnated.
In the next chapter, he is a high schooler who looks like Harry Potter. (He has black hair. He doesn't have a scar on his forehead.) He is in the modern age now, with everyone using smartphones. He was bullied for some reason on the school rooftop.
After everyone left school, a small monster came out of a portal. He was going to fight the monster, then the chapter ends.
I am not sure if this is a manhwa or manga. There was mention of oni, which are Japanese monsters, but the art style looked Korean. I think this is a manhwa. I can't remember the manga/manhwa name anymore. Can anyone help me find this manga/manhwa?
