Shinigami No Ballad

Taken from Baka-updates:
Hayama Makoto is tormented by sightings of Shinigami(), Asano Mitsuki dwells on his dead sister’s shadow, and Koumoto Yaeko longs for the love of her life―these are the heart-rending yet tender tales of the people whose thoughts dwell on life and death, and of the white Shinigami Momo.
()Shinigami, 死神 is the Japanese word for “Grim Reaper” and literally means “god of death”.