Sinopsis:

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You’re the only one in this life where I can’t die.
A storyteller that will touch your soul is born.
A sci-fi about the lives of a doctor who gives blood and a vampire who doesn’t age.

The new doctor, Tadayuki, suddenly underwent a transformation.
He desperately wanted blood like a vampire, and his aging process had slowed dramatically.

Tadayuki attacked his senpai Juji, and disappeared after telling Juji that he had died.
But Juji sought out Tadayuki and offered him a helping hand, telling him, “I’ll examine you and give you blood, too.”

They never could have imagined that it was the beginning of a secret they would keep for decades.