1. The Encounter

Okada Satoshi, a third-year middle school student and the head of the choir club, is suddenly approached by a yakuza named Narita Kyoji at the choir competition venue, who says, "Let's go sing karaoke!" I'm called out to. At the Matsuribayashi gang, where Kyoji is, there's an annual karaoke contest, and the request was for singing lessons so he wouldn't be crowned the worst singer.

2. Nightmare

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

4. Crimson

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

5. Life Gone Awry

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