A sudden accident first brought together Hachiman Hikigaya, Yukino Yukinoshita, and Yui Yuigahama. Then they became the Service Club, helping others with their woes while working through their own complicated emotions. As the club now fulfills one last job—throwing the best interschool prom they can—the trio must think about how their relationship has changed and what future lies ahead for them. Their youth romantic comedy, mistakes and deviations and all, concludes here!

Haruno orders Hachiman to leak the plans. Falling right in Haruno’s trap, Yukino’s Mother goes to the school to put a stop to the prom! And as Yukino and Hachiman discuss what happened with their little “competition,” something between them begins to shift...

Turnamen Triwizard akan diselenggarakan di Hogwarts. Hanya penyihir berusia di atas tujuh belas yang diizinkan ikut - namun itu tidak menghentikan Harry bermimpi bahwa dirinya akan memenangkan kompetisi. Lalu pada acara Hallowe'en, ketika Piala Api menjatuhkan pilihannya, Harry terpana mengetahui namanya adalah salah satu yang dipilih oleh piala sihir tersebut. Dia akan menghadapi tugas menentang maut, naga, dan penyihir Gelap, namun dengan bantuan sahabat-sahabatnya, Ron dan Hermione, dia mungkin berhasil lolos - tetap hidup!

“Let me throw your life out of alignment.” The prom goes off without a hitch, and Yukino announces the end of the Service Club’s activities. Hachiman just can’t accept it, though. Hachiman’s actions are a big surprise, but what are they...?