Anna Takakawa, a selfish young girl in Director Sawa's hospital needs a new heart, and her sister Kanna pleads with Ray to use transplant her own heart. Ray only agrees because she intends to implant her business partner Toshiaki Shinoyama's new experimental artificial heart, but doesn't tell the sisters. However, Anna goes into decline and Ray has to start the transplant operation. Fortunately, Shinoyama arrives with a new smaller version of his artificial heart which Ray successfully implants. When Anna recovers, she reunites with Kanna and tearfully apologises to Kanna for demanding her heart.