Grim Reaper in the Apocalypse: Reaping Immortals - Chapter 6: Grass

Living in Tokyo, using the Mind-reading Extraction Skill, I thought I could become an all-powerful superhero, but instead, I got dragged into a twisted cycle of love?! Without even a moment to mourn my youth, the one who immediately rushed to the battlefield was— Kiryu Hina (ex-girlfriend), “Remember, this is what you owe me.” Ayakoji Chiyoko (current girlfriend), “Break it off with that woman immediately!” Kohinata Motoyo (rough target), “Please, I’ll do anything!” Ai Cheng Hua Lian (always losing), “Huh?” Kagura Hikaru (protagonist), “...........” My youth romantic comedy can’t possibly be this twisted!!!

Freshly turned eighteen, John Newman, a helpless nerd, suddenly gets video game abilities granted to him. A mysterious higher power, a secret Abyss of magic beneath the surface of the normal world, mages, martial artists, eroticism, tragedy and a harem of hot girls awaits.

I, the mighty Telepath Starlord, got banished into the mortal world. The days in the mortal world are much better than those in heaven! Everything is here — money, authority and most importantly stunning beauties! I am from a rich family. Yes, I am indeed wealthy now. The kind of wealth where you would not want to displease me. Domineering CEOs, military big shots, business geniuses, you name it — I know them all! I know everything you are thinking about. You can’t defeat me anyway, how are you going to go against me? A century in the mortal world is only equivalent to a hundred days in heaven.
As an urban banished immortal, I will enjoy the heck out of my time in the human world and a huge commotion would arise in heaven!

- Description from Novelupdates

Chi Lang transmigrated to the Middle Ages as a third-rate magician in a third-rate magic academy. His magical aptitude is zero. But he has a good roommate.

His roommate is good-looking.

His roommate is good-natured.

His roommate helped him escape from danger several times.

His roommate never complains.

Chi Lang felt like he liked his roommate a little bit, and then his roommate helped him solve his ‘single’ problem.

It wasn’t until much later that he realized that his roommate was a remarkable figure.

——He was one of the demons sealed by the magician known as the “God of Magic”… And Chi Lang became the one who unlocked the seal of the Demon Lord.

- Description from Novelupdates