Every time Yoh hears the word "Sunny" he becomes bashful, because it makes him think of the secret agreement between himself and Segasaki.

Working with Manjuu, Yoh recalls the first time he met and got to know Segasaki.

Segasaki invites Yoh out on the town on his day off, but Yoh still doesn't feel quite right while out.

Yoh gets jealous and confused when Segasaki shows a side of himself to one of his colleagues that the former has never seen before.

Manju suddenly shows up at Yoh and Segasaki's place, and she finally learns about the pair's relationship.

Yoh suffers from a setback at work and becomes depressed, so Segasaki takes meticulous care of him as a result.

While they were both students and met for the first time, Yoh also gradually became an irreplaceable part of Segasaki's life.

Through the manga made about their lives, Segasaki and Yoh are finally able to connect on a deeper level.