A grown man reunites with his childhood friend from student days. Keeping their senior-junior relationship intact, they decide to hold a drinking party to catch up after so long. When the drinks aren't enough, the men head to Kaori Otonashi's place to keep the night going. Filled with nostalgia from their long-standing bond and the familiar warmth of Kaori's home, everyone begins reminiscing about the past. That night, each man carries his own feelings close as they step into a new chapter together.