"Barriers of the heart. Afraid that their relationship is only doing more harm to them than good, Itsuki decides to break up with Tsugumi. The breakup leaves Tsugumi reeling, and while she tries to come to terms with Itsuki ending their relationship, she just can't seem to swallow her lingering feelings. When she's at her lowest, Koreda comes to support her, and Tsugumi begins to see a side of Koreda she's never seen before. Meanwhile, Itsuki begins to regret his decision and decides to tell Tsugumi his true feelings. But when a family emergency has Tsugumi moving back to Matsumoto, will Itsuki's feelings reach her in time, or will it be too late?"--Provided by publisher.

Translated from the Japanese. "First published in Japan in 2016 by Kodansha Ltd., Tokyo as Perfect World, volume 4"--Colophon. Reads from right to left. "A Kodansha Comics trade paperback original"--Colophon.