After writing a less than flattering essay about his high school life, Hachiman is forced to join a very unique club with only one member.

As Hachiman continues his narrative of his school life, tension rises in the room as Yui attempts to break away from her social group. If that wasn't enough, the club has received a new request from a unique visitor.

Hachiman continues his solitary lifestyle by using his skills to ensure he is left alone during gym and lunch. His routine is broken by the appearance of Saika Tosuka, who has come to him with a request.

Hachiman questions what it is like having a sister in real life means. While walking her to school she brings up the car accident he was in while saving a dog. At school, he is once again berated by Shizuka on his response to the "Career Observation Application survey". When he finally makes it to the club room, a mysterious text sets off the clubs next request.

Hachiman's younger sister, Hikigaya Komachi, was asked to give advice to a fellow classmate, Kawasaki Taishi. Apparently his sister had been acting strange. His older sister, Kawasaki Saki (though Hachiman wasn't aware of this), was in the same class as Hachiman and Yui, so the Service Club decided to help with the issue.

Shizuka announces that Hachiman and Yui must go on a recruitment drive to find more members, and they know exactly who to target.

Shizuka is constantly calling and texting Hachiman while he tries to relax during summer vacation.

Shizuka readies a bonfire and a “test of courage.” Later, Yui recognizes the limo that hit Hachiman.

Hachiman becomes restless as summer draws to an end. A Firework Festival opens the door for more teasing and many SNAFUs!

Yui notices a rift forming between Hachiman and Yukino. Hachiman is nominated to serve on the committee for the school's upcoming cultural festival.

Hachiman and Yui check on Yukino. Later, Hachiman shakes things up with the committee when he decides to alter their mindset.

Soubu High's Cultural Festival continues and Hachiman is stuck carrying out his duty as a committee member by documenting the day's events on film.

A mysterious request to helm the upcoming sports festival arrives. The group must band together to figure out a way to pull it off.