I'm just a Side Character

Ataashi Hitoka is your basic average high-schooler with above average perception and deduction skills. Basically, he can read the room better than an average person. We get a third-person view on an actual main character as well as a first-person view on what being a background character feels like. This story is all about romance, expected c lichés, a totally basic romcom slice of life story (with a whole lot of plot twists).