Naoya Sagiri 沙霧尚哉

A doctor working at Keyaki General Hospital. When he was a novice doctor, Sagiri had been close to the Ayamine family working with the mother and tutoring Kei, close enough that he thought of Kei's mother as his own. Kei and him had a very close friendship back then and the two had feelings for each other, but nothing ever came from it.

After an accident where Kei's mother took the fall for him and was fired, Sagiri soon began climbing the career ladder. Driven by a desire for career success, he accepted a proposal to the hospital director's daughter, distancing himself from the Ayamine family. He is currently married to her and has a child, but he still has some regrets from his past, especially toward Kei.

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