^ Hm, yes... she is the odd ball. It always seems like Rika and Yui are together the most. Well within V-u-Den. Then Rika leaves and Yui and Erika only have each other. Cuz rika wants to play with Yossy. then when she gets bored she'll go back and play with Yui and Erika. but most of the time she plays with Yui cuz Erika always wants to do weird stuff like play tug of war like dogs.