Mariko studies at a missionary school in Shinshu. She drops out of school and joins her father on a circus tour when she discovers that her father, Ryutaro, whom she always thought was an agricultural and forestry engineer, was a circus clown. Over time, Mariko's singing attracted the attention of the public.

• Shochiku
• Hibari Misora
• Keiji Sada
• Keiko Kishi
• Kuniko Miyake
• Shunji Sakai
• Shin Tokudaiji
• Ryuji Kita
• Akio Isono