No Matter How I Look At It, It's You Guys' Fault I'm Not Popular!

Watashi ga Motenai no wa dou Kangaete mo Omaera ga Warui! is a Japanese manga series written and illustrated by Nico Tanigawa.

Plot
Being well-versed in the world of otome games, fifteen-year-old Tomoko Kuroki thinks she is popular. Upon entering high school, she discovers this is far from the truth as she winds up being an unsociable loner, and she is forced to take a long hard look at herself for the first time in years! This story follows Tomoko as she attempts to improve her social status as she progresses through high school.