Satomi, president of his school's choir club, gets embroiled in abizarre situation when he's asked by Kyouji the yakuza to give him voicelessons. Surprisingly, Kyouji's quite serious and diligent in his practicetoo! As the two spend time together, where will this odd friendship takethem...?
Nothing worries Satomi Oka more than the upcoming final choir competition of his middle school career -- right up until he is accosted by a stranger from the shadows who demands, "Let's go karaoke!" As a yakuza, Kyouji Narita doesn't scare easily, but a terrifying prospect has driven him to seek Satomi's help. The boss is holding a karaoke contest, with the loser forced to get a tattoo to be selected and torturously applied by the boss himself! Oka has been to many vocal rehearsals over the years, but never one-on-one karaoke sessions with a gangster!!