From xkazemg:
"Have you heard of 'the heartbeat of an angel'? This is the love story of Kairi and Shigeru, a midwife and an obstetrician. The two destinies become one for their own 'angel'..."

Kairi used to be a midwife working for a large hospital in Tokyo. Fed up with the hospital’s hierarchy politics, Kairi left and settled down in a small town of Sapporo and worked as a assistant nurse to a local doctor instead.

Unknown to anyone, Kairi had been having a same dream every night for a very long time. By now, she was used to wake up in the morning with tears, as she dreamt her lover of previous life from the Sengoku period died sadly in her embrace...

As she finally met Dr Daidouji, they found their destinies entwined, again.