99's Amanojaku

Ayaka, a junior high school student, is suddenly cursed by the Amanojaku, causing a horn to grow from her head. The horn causes her pain whenever she expresses something that contradicts her true feelings. To remove it, she seeks help from Nayuta, a real Amanojaku she encounters in 99's Village, and attempts to become a better person. However, she faces uncertainty as she may be at the mercy of the demon girls who inhabit the area.