Yuu Kisaragi, a skilled physician, has a big crush on someone, but his feelings will never be returned; the person is his colleague Hasunuma.
To distract himself from the fruitless love, he works hard in a university hospital in the daytime and goes to a bar at night seeking one night stand.
One day Kisaragi was involved in an incident at a rip-off bar. He was saved by Kanesaki, his patient Arima's man, and they slept together.
Before long Kisaragi grows to like Kanesaki, but fate doesn't work in favor of Kisaragi.

The story of the sundered lovers.