Dense-kun is a high school boy. There is this girl who has a crush on him named "simp-chan" who has a crush on him, but as his name says, he is very dense, in fact a little dumb, so he never catches on to her flirting. One time, she threw him a baseball with a heart on it, but he just hit it back, not noticing the heart. This is why his name is dense kun. He is mostly laid back and chill tho.