Shirahana no Ori: Hiiro no Kakera 4

Tamayori hime is the priestess who's in charge of sealing the sword that might bring the end of the world. To do this, she bears her loneliness and everybody's sin without complaint. However, everything changes when she meets a god in the middle of a snowy night. Gentouka has the power to grant immortality, and has been chased around by the government officials. And following his lead, more trouble and complications enter the life of the priestess.