Full name Aya Shameimaru, a Crow Tengu living on Youkai Mountain. First person: I (polite, professional). Second person: you (polite). She possesses the "ability to manipulate wind."

Full name Remilia Scarlet, a vampire and the mistress of the Scarlet Devil Mansion. First person: I (dignified). Second person: you (formal). She possesses the "ability to manipulate fate."

Full name Flandre Scarlet, a vampire living in the Scarlet Devil Mansion and Remilia's younger sister. She possesses the "ability to destroy absolutely anything and everything."

Full name Sakuya Izayoi, the Head Maid of the Scarlet Devil Mansion. She possesses the "ability to manipulate time."

Full name Patchouli Knowledge, a magician living in the Scarlet Devil Mansion's Great Library. She possesses the "ability to manipulate the seven elements (Sun, Moon, Fire, Water, Wood, Metal, Earth)."