Shirogane

シロガネ

He is the King of Ayakashi. While his true form is a gigantic feline, he appears as an overweight cat wearing a bib when he suppresses his power; this is the form he remains in after Matsuri seals most of his powers into a scroll. Shirogane wants to devour Suzu to gain more power, and seems to get jealous of her feelings towards Matsuri.