Trolls are closely related to Ogres, who primarily prey on other races, particularly Emnetwiht (humans). During a scavenger mission, Willem encountered Nygglatho while she was in her terrified state. On occasion, she playfully asks Willem if she can consume him. Despite being young, Nygglatho has achieved much and serves as the maternal figure in the facility. She treats all fairies within it as her own offspring. Occasionally, she reveals her vulnerable side and seeks solace by hunting bears in the forest when feeling down.
Her father is on the 11th Island and runs an inn. Willem and Elq stayed there for awhile.
She holds a high opinion about Willem and asks Willem to consider her to be his partner.
After Chthollys death, she cut her hair short, a Troll custom.