I've seen Koko and Nanami already. Both are good looking and easy on eyes. I think Koko is younger and much better after seeing for the second time. I've yet to repeat Nanami. Challenge is when you go there with Nanami in mind, but the one showed up to welcome you is Koko. What would you do? And, before you can react she greeted you with "I'm happy to see you again."...What a dilema! Only response I can think of is, "are you and Nanami available for 3P?"