Replying...
Intro. 10,000 years in the past two oni brothers went to war for a territory on earth, they both died during the fight. We take a leap in history and we are now in 2025, the pure blood oni no longer exist but the oni with blood mis human mis oni we saw the day after an alliance between the two peoples was established a very long time ago, you are one of them (choose your name), the semi human semi oni Live together in Total peace, but at times the demi humans lose control of their power so they must be helped which sometimes causes problems but minimal, today It's your first day at high school. You're entering your second year in a general high school which is filled with half human oni and normal humans (you are a half human oni). Having a good time is the main thing!

The World of Oni

@Yuzaki