Harlequin

She is the fourth of the Eleven Heralds of the Fatui and the current headmistress of the House of the Bonfire. Members of the house address her as "Father", whom she calls her "children".

Several years ago, when she was a child, Arlecchino stood up to the previous holder of the title of The Page and eventually succeeded her. She reformed the House of the Bonfire; though strict, she insisted that the House be maintained as a collective, allowed its members to complete tasks in their own way, and did not punish them as harshly as her predecessor. This caused Efim Snezhevich, a House of the Bonfire instructor loyal to the previous Arlecchino, to act independently to follow the previous Arlecchino's lead, successfully using Arlecchino's name as leverage.

Arlecchino began to give Lynette more dangerous missions, and Lyney would eventually ask Arlecchino for a Deception in order to try to keep her sister. Arlecchino refused her request and seemed angered by the idea, telling her that he already had what he needed to support his sister. Lyney's determination to protect her family after a mission that nearly killed them caused her to gain a Pyro Vision. Arlecchino would also eventually consider Lyney his successor at the Bonfire House.

Following Tartaglia's disappearance from Fort Meropide, Arlecchino decided to investigate Furina and Neuvillette, while sending Lyney, Lynette, and Fréminet to the prison to gather information. During her own investigation, she suspected that neither of the two were the Hydro Archon, especially the former due to her behavior and a "curse" of some sort, and came to the conclusion that the Hydro Gnosis was hidden. She would eventually meet the Traveler during her second meeting with Furina, where she expressed her anger at the Archon's apparent lack of urgency regarding the prophecy to protect her people. However, not having Neuvillette around, she decided that such topics would not yield much and concluded the meeting, where she shared her thoughts on her Archon privately with the Traveler. She also thanked them for helping her "children."

Arlecchino has a model of a tall woman, thin build, pale complexion. This woman is known for her physique of black eyes with a red pupil in the shape of an "X", she has hair in two layers; the first is shorter and is slightly combed, having a longer lock on her right side that extends to her shoulders and her bangs reach her eyebrows. Above her bangs she has a root of black hair, while her second layer is longer than the rest and is combed in a ponytail downwards with a black elastic band with a reddish detail.

Arlecchino's outfit consists of a straight gray corset-type shirt with a blue / black hue, a short white tie with the Fatui symbol in the middle with a reddish and black tone, pronounced shoulders, sleeves with ruffles on the wrists in red and black, tight pants on top while the bottom is a little loose and black. On his arms he has a mark of the black tone up to his hands, his nails are long and reddish, his ring and index fingers have a pair of silver rings. He wears long heels / ankle boots with a gray hue and reddish details, he wears white cross-shaped earrings. He wears his Pyro vision near the nape of his neck.