karaoke iko!

Karaoke Iko! (カラオケ行こ!, Let's Go Karaoke!) is a manga written and illustrated by Wayama Yama. Prequel to Famiresu Iko.

Oka Satomi, the third-year head of a junior high school choir, is in preparations for his final performance before graduating. After seeing him perform, yakuza lieutenant Narita Kyouji asks Satomi to coach him in singing in advance of an annual karaoke competition held by his boss.