Milk is Cinnamoroll's baby friend. He loves milk which is how he got his name.
Milk is a baby boy pup who wants to be like Cinnamoroll. His pacifier is his most prized possession, and he's skilled at gulping large quantities of milk. He has the same characteristics as Cinnamoroll, large ears and a black nose, though he cannot fly yet, or when he grows up.
Manga = Milk in the Manga
Anime = Video SanrioTown (It's All About Milk!)