My, my, what do we have here? Koromo clearly represents all things cute. Rabbit ribbon ears, check. Almost no nose, check. Loli-maid outfit, check! Almost nauseating pastel scheme, CHECK! She looks a little like fallen Flonne, and a little like the lovechild between Alice and the White Rabbit.
She's also from an anime about mahjong, and that in itself is awesome, if only because it actually got made. Oh Japan, you so crazy.