My Sister's Death Countdown Turns Out to Be My - Werewolf Edition Side Quest

For 16 years, Selena’s death countdown ticked to 16. Her parents spoiled her rotten, while sister Amber was neglected and labeled a jealous brat. On the final night, they locked feverish Amber in a cellar. At dawn, Selena lived—her countdown gone. Amber died alone, the secret sacrifice. Her ghost finds solace in grandma’s love and chooses reincarnation