Hachiman Hikigaya is a loner with an inferiority complex who is tricked into joining the "Service Club" that helps students with their problems… at all costs.

Hachiman bears witness as Yui tries to either fit in or break away from her social group. Later, the club receives a new request from an old friend of Hachiman’s.

Hachiman has a small crisis concerning little sisters and what they mean. Afterward he receives a mysterious text, outlining the club’s next student request.