A simply-drawn white Dog with a large black nose, often with its tongue hanging out. Originally drawn by Inugami Korone and used as a membership reward sticker, it eventually became a popular mascot and was given its own animated version to be included in her streams.
The main difference between Hoso-inu and Futo-inu is the shape of their snouts. Futo-inu has a wide snout while Hoso-inu has a narrower, straight snout. Futo-inu also has black floppy ears while Hoso-inu has white ears.