Hitori Bocchi's ○○ Lifestyle

Hitori Bocchi no Marumaru Seikatsu (ひとりぼっちの○○生活, "The **** Life of Being Alone") is a Japanese four-panel manga series written and illustrated by Katsuwo, which began serialization in ASCII Media Works' Comic Dengeki Daioh "g" magazine in 2013. Four tankōbon volumes have been released and compiled so far. An anime television series adaptation by C2C will premiere in April 5, 2019.

Plot
Bocchi Hitori is a girl who suffers from social anxiety, making it hard for her to talk to others. Upon entering middle school, her only friend Kai Yawara, who is attending a different school, tells Bocchi she is breaking off their friendship until she can make friends with her entire class. Thus, Bocchi is left with the task of befriending everyone in her class before graduation.