This strange green bug who lookes like a Great Beetil is not as angry as his face looks like. He is working hard to make Valentine's Day a success but always still needs mor things. You might find him in Florapolis when it's around Valentine's Day in spring. He will ask you for help just like Cupid in Sanrio Harbour will.
You might have to search for a lot of things to save Valentine, but there are nice rewards waiting for you like special furniture and accessories.