Pianist Misaki opens a piano class at home with the support of her understanding husband while performing. One day, when Misaki notices that the instrument is out of tune, she consults with a familiar tuner, but unfortunately she has her hands full. Introduced as "I'm sure of my skills", I asked a tuner named Kagiyama for the first time. However, he got angry at Kagiyama's overly impolite remarks and tried to turn him away, but...
