As Nami (Akiho Yoshizawa) was on her usual deco-truck errand, a High School girl called Kanna shows up. She tells Nami that she is her long-lost sister since she was 5 years old, and she has run away from home after quarreling with her mother. Nami cannot recall much about her mother, Nanako but it turns out that she is Nami's favorite radio program DJ. Can she forgive her mother for abandoning her!? What will become of the ongoing romance with Kikuo!?!?