Horry, also called Holly or Chocola, is a ghost aspiring to join the "holly ghost" group, monsters dedicated to spreading fear. He trains under the group's leader, the witch Majoline, striving for recognition. On this journey, he bonds with four friends, including Candy and Toreppaa, who accompany his training. Together, they undertake lessons focused on mastering fear-inducing fundamentals, applying their ghostly abilities practically and emphasizing teamwork. Horry's development charts his path from aspirant to active participant in holly ghost initiatives, working with his companions to earn standing within their supernatural community.