WATAMOTE ~No Matter How I Look at It, It's You Guys Fault I'm Not Popular!~ - S01

Aomatsu is just an ordinary otaku living a dull middle school life. Looking to shake things up, he decides to check out the school roof, and there he spots a mysterious girl with pitch-black hair. He does not know it yet, but her name is Tomoko Kuroki, and she is known for her strange behavior. Their conversation leaves a strong impression on Aomatsu, and he keeps coming back day after day just to see Tomoko again. Tomoko sees these meetings very differently, though, so the two end up with very different memories of one particular event.