The landlord of Maison sans Nom. Tsuyu is obsessed with his own cuteness and habitually declares himself the cutest person in the world. He enjoys teasing the other residents, and while they get annoyed with Tsuyu's antics sometimes, they still adore him. He often earns himself a spanking from Yozora.
He is also a content creator who makes full use of his looks while livestreaming as "Chuyu." He has a preference for strong-willed people and takes a particular liking to Tatsuki in this regard.
A Curse Bearer like Ao and Mémé, he possesses a mysterious power.