Tritsya Kuroki

Tritsya Kuroki is a friend of Hotaru Satou who lives in New Archangel, notable for being the daughter of the owners of the arcade, Felicipolis. Tritsya is a close friend of Hotaru, and has a keen interest in the supernatural and occult. Later, after Hotaru escapes from a vampire attack, she and Tritsya track down the aforementioned vampire, where they find Emilie Boucher among the vampires, meet with the Vampire tracker Miraslav Petrov, and discover the Yukon Hypogeum.