Maki Sakai

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 tortuously 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!!

45-year-old Hiro Kamon works as a librarian because she loves books. Although she is worshiped as the aloof beauty and ideal female for her beautiful, gentle smile and amiability, she actually dislikes people. Hiro has been hurt countless times, and Choji, the only guy she loved wholeheartedly in university, also fled in one night. She has become a person who no longer believes in love and has decided to live alone for life. But she ends up acting as a fake married couple with Choji, whom she happens to meet again, for the sake of his mother, Teruno, who has been given a short time to live.