Reiya’s world crumbles when her twin sister unexpectedly passes away. Devastated by grief, Reiya's life spirals out of control as she sabotages her career as a volleyball player and strains her relationships with family and friends. Hoping to escape the constant reminders of her sister, Reiya reluctantly agrees to move to Crescent Valley with her childhood best friend Estelle, and joins her hiking and stargazing friend group. Will Reiya find new inspiration in the stars?