先輩が卒業して箏曲部ただ一人の部員になってしまった武蔵。四月になり新入部員の勧誘に励むのだが、部の存在自体を知らない人も居る状態。そんな彼の前に現れた、見るからに不良で箏とは縁の無さそうな新入生が入部したいと言い出して!?
Since the graduation of the senior members of the club, Takezou ends up being the sole member of the “Koto” (traditional Japanese string instrument) club. Now that the new school year has begun, Takezou will have to seek out new members for the club, or the club will be terminated. Out of nowhere, a new member barges into the near-abandoned club room, demanding to join the club. How will Takezou be able to keep his club alive and deal with this rascal of a new member?