Satomi Oka, the leader of the choir, is suddenly called out by a yakuza to go karaoke to get singing lessons.

Satomi finds himself having nightmares, only for it to worsen when a group of Yakuza ask him for help.

With the big day coming up, Satomi must sort his feelings as his time with Kyouji draws closer to an end.

Left in disbelief, Satomi knew there was only one place to go if he wanted to find out Kyouji's condition.

Three years have passed since the big day. See the events that unfold through Kyouji's eyes since then.