Perfect World manga volume 5 features story and art by Rie Aruga.

After her breakup with Itsuki, Tsumugi leaves Tokyo for her childhood home in Matsumoto. She tries to look ahead in her relationship with Koreda and distance herself from her past relationship with Itsuki, but in spite of her best efforts, fate continues to bring the two of them together. While caring for her ailing father, Tsugumi meets Kaede, who uses a wheelchair, and Keigo, her boyfriend who wants to build her a barrier-free house. Itsuki seems like the perfect person for the job, but when he turns the offer down, can Tsugumi convince him otherwise?