Yaksa

Yaksa is a demon in the series.

History
Yaksha (Sanskrit यक्ष, yakṣa, ञक्ख yakkha in Pāli ) is the name of a broad class of nature-spirits, usually benevolent, who are caretakers of the natural treasures hidden in the earth and tree roots. They appear in Hindu, Jain and Buddhist mythology. In Hindu, Jain, and Buddhist mythology, the yakṣa has a dual personality. On the one hand, a yakṣa may be an inoffensive nature-fairy, associated with woods and mountains; but there is a much darker version of the yakṣa, which is a kind of cannibalistic ogre, ghost or demon that haunts the wilderness and waylays and devours travelers, similar to the rakṣasas.