Maria

Four sisters are all involved with the medical field. Sora inherits a medical clinic in Shinjuku from her father, while Umi is a doctor researching gene therapy. Riku's husband owns a large hospital, and Mimi is a trainee doctor dreaming of becoming famous. The four sisters are shocked to meet an unknown half-sister, Hiyo, from Hokkaido.

• Atsuko AsanoSora Sakamoto
• Maki GotoHiyo Sakamoto
• Misa UeharaCast
• Rei KikukawaMimi Sakamoto
• Kumiko OkaeRiku Osawa
• Keiko KishiUmi Sakamoto
• Ryunosuke KamikiKondo Masashi (Ep. 7)