Nidome no Natsu, Nidoto Aenai Kimi
二度めの夏、二度と会えない君
A girl named Moriyama Rin suffers from an incurable illness and conceals it throughout high school. The narrator develops feelings for her, and they share a final moment at a cultural festival featuring a live performance before Rin passes away. The narrator then finds themselves experiencing a time leap.
