The beautiful Yotsuba Sisters check into Toutei University Hospital. While their visit is a secret, the hospital is abuzz with rumors. The doctors are restless. Michiko Daimon visits the sisters in their room. She notices something awkward. The beautiful Mirei Yotsuba and... her sister Mion, who looks nothing like her PR photos. Mion is the patient and she is there to get treatment for obesity.
