宇海さん？女だったの？！！！
さぁさぁ燃え上がれー
やっぱり女の子だよなぁぁぁぁぁぁ！
the girl remembered Hiiragi as the last name of the boy she liked in kindergarten. her name is,"Sasaki Umi," evidently she is involved with Riku in doing advertisement for the maid cafe. Rin and Reika were comparing themselves to the other woman, and they both had the same ideal, that the one they were looking at was a prettier woman than they themselves were. Reika mentioned that they couldn't spend their time arguing between themselves, and drop their guard about Riku because there was still another woman out there, from kindergarten. Thanks for the update, it's quite the romantic comedy!
やっぱり女だったか…………
うん！わかってた