If you play MMOs you may be able to tell what game this is (that and it's in the title)

But basically these are the characters i use the most on RO. Although it's not important there names are as follows.

Top-right = Nabeto
Top-left = Najeska
Right = Union
Left = Mistral
Bottom-right = Balrog
Bottom-left = Tsuzurao
Center = Maneki Neko
Bottom = Nekogami