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Dr.コトー診療所
五岛健助（吉冈秀隆饰）原本是众所公认、前途无量的优秀医师，因为发生某个事件，而毅然决然告别女友（石田百合子饰演），志愿千里迢迢从东京来到没有医师、缺乏医疗环境的南海孤岛－志木那岛。由於离岛医师一向流动性很大，因此居民们多半对他采取怀疑而不友善的态度。即使如此，五岛医师仍本著以生命为尊的信念，与同样充满正义感的护士彩佳（柴崎幸 饰），在有限的资源下灌注热情，两人三脚共同面对一切病魔
News of Takehiro's exam results brings delight to the island community. Meanwhile, Ayaka seeks treatment in Tokyo for a serious condition.
Ayaka struggles with uncertainty over her treatment options. Back on the island, fire destroys an elderly islander's home and leaves him injured.
Mina befriends a girl named Hina, whose family moved to Shikina 2 years prior. When Hina suddenly becomes sick, Mina faces backlash from the community.
In Tokyo, Takehiro struggles with his new academic workload. Meanwhile, the island's fishing festival brings up painful memories for Shoichi.
Dr. Coto receives troubling news from Ayaka's doctor about her treatment results. Panic strikes Shikina island as a boat goes missing in rough seas.
Takehiro tells Dr. Coto that he's thinking of quitting private school, while his best friend Kunio deals with parental pressure and a dramatic health problem.
A young woman from the island community receives a shocking diagnosis. When surgery fails, her devastated husband tries to hide the truth from her.
Some unexpected news gives Sakano hope that his wife Yukari can make a full recovery. Dr. Coto remains vigilant about the news.
A surprise visitor brings to light a painful secret from Mina's past, while her injuries reveal a horrible truth.
Tensions rise between Ayaka, Dr. Coto, and Shoichi as her father finally learns about her illness. With the date of her surgery approaching, Ayaka fears about her future.
The islanders gather to support Ayaka during her surgery. Can Dr. Coto keeps his cool as he operates someone who means so much to him?
