After her breakup with Itsuki, Tsumugi leaves Tokyo for her old home in Matsumoto...and after one stormy night, she finds herself in a relationship with Koreda! Tsugumi thought she was over Itsuki, but she meets Kaede, who uses a wheelchair, and Keigo, her boyfriend who wants to build her a house that meets her need...and, shockingly, Itsuki refuses to design it for him! The news plunges Tsugumi's heart into turmoil... Meanwhile, big changes are in store for Nagasawa and Itsuki's relationship.
