Pingtsi

The body Pingtsi inhabits has dark hair with a bluish cast, cut into eye-length bangs with longer pieces at the sides and gathered into a ponytail that recalls a futakuchi-onna. Because the tail shares the hair's color, whether it came with the corpse or belongs to the devil within is left ambiguous. Red bands hold her hair in place. Her outfit is a black knee-length dress trimmed in white at the cuffs and collar, worn with black leggings and plain black shoes. Purple eyes sit in her ponytail, those on her face shift between red and purple, and she stands as the shortest of Quanxi's fiends by a clear margin.

Bright and endlessly talkative, Pingtsi delights in rattling off trivia, mostly to amuse or impress Quanxi.

Pingtsi counts herself among Quanxi's lovers, sharing that role with Cosmo, Long, and Tsugihagi, and she trails her devotedly. Newly landed in Japan, she begs Quanxi for a trip to a sushi place, where she shows off her fish trivia to her partner's exasperation. As Quanxi carves a path toward the mall, mowing down dolls and hunters alike, Pingtsi quips that the corpses are the ones doing the talking. When Kishibe corners her group, she claims not to follow Japanese, then turns her gift on him: her ponytail reshapes into a magnifying glass that reads the contracts inked into a person, and she announces that he is bound to some fearsome devils. She taunts him for having no body left to trade for their power and orders her lovers to eat him alive.

The plan unravels. Kishibe seizes her, Power holds a blade to her throat, and the whole party is cast down into Hell. There she panics, sensing the Primal Fears observing them and warning that any hostility will mean death, even begging Quanxi for leave to end herself. The Darkness Devil strips away her hands and kills her along with the others. She returns briefly as one of Santa Claus's dolls, deployed beside Long to rattle Quanxi, and after she stabs her lover, Quanxi draws her into a final embrace. Her corpse is later seized by Public Safety, which dangles the return of her fallen lovers to lure Quanxi into Special Division 7. Because she is a fiend rather than a full devil, Pingtsi cannot form contracts and fights with weakened power, and apart from her detective trick she also speaks both Mandarin and Japanese, though the latter eludes her at first.