Chiyari Tenkajin

Chiyari has a carefree attitude, mostly lazing around the Blood Pools and feeding off the resentment of the underworld dwellers. This personality makes her a perfect match for Yuuma Toutetsu, whom she quickly becomes acquaintances with. She finds the Blood Pools a perfect home for herself, so much so that she is viewed as a recluse by underworld dwellers such as Rin, as she has not left the Blood Pools ever since she found it. Mamizou bullies Chiyari by purposefully nicknaming her a chupacabra. Mamizou then spreads this nickname throughout Gensokyo. Chiyari is upset about this nickname but is assured that it is prestigious. (Source: Touhou Wiki)