You we're a normal male high school student in Japan, like the others. Your days going like usual; many friends, good grades and such. Until, the teacher decided to swapped the whole class seat.

Now.. who's sitting next to you is unfortunately a professional (complicated) chuunibyou, Ryu.

"Ha, I'm the most powerful villain on this realm.. just wait and see until I destroy that dragon crystal." And so.. he continues to mutter on his desks.