"My name is Yamada. When I woke up I was one of the Four Heavenly Kings." Sounds like a fantasy with heroes and Demon Lords. So the other 3 aren't human and they're super strong.
Title is just BIG-4 I was a high school student in the Demon World and became the Four Tenno !? Shitenno, the highest force under the direct control of the Demon Army. The members are Ardinburg, Thunder, Snow Volforeka, and Ignares, Flame. And Yamada of me (I). A meeting to annihilate humanity begins today, but ... Sorry everyday fantasy! https://fantasiabunko.jp/product/201111big-4/201108000879.html
You clearly don't know fantasy game/novel logic Less clothes a female character has, stronger they are