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 Asano
Sora Sakamoto
Maki Goto
Hiyo Sakamoto
Misa Uehara
Rei Kikukawa
Mimi Sakamoto
Kumiko Okae
Riku Osawa
Keiko Kishi
Umi Sakamoto
Ryunosuke Kamiki
Kondo Masashi (Ep. 7)
The Resident83%
Sullivan's Crossing80%
Doctor-X: Surgeon Michiko Daimon74%
Ambitions74%
Code Blue76%
Hawthorne70%
Days with My Stepsister76%
Tyler Perry's The Oval81%
Holby City58%
SkyMed68%
Tsukigakirei80%
Asura79%
One Tree Hill78%
Yosuga no Sora68%
The Great White Tower90%
Tokyo Love Story83%
Unchosen68%
Road to Avonlea82%
The Ramparts of Ice87%
Offspring69%
