Izumi, a high school student, is invited by her friend to a live music club for the first time!　But when she hands over her ticket to enter the venue with nervousness, she is told that "junior high school students are not allowed. Izumi is hit by a rude guy right away, and she can't get along with the music at all during the concert.... Izumi is depressed, and the rude man says, "Let me apologize to you..."?　Love is booming in the hall, and the heart rate of the live house manager and the tall JK is soaring!