Because the first time they met... Y-da: "You know, Y-naga-san, the more makeup you put on, the more you look like a guy in drag. So I'm going to call you F-mio!" Y-naga: "I-I like this person!" The moment she fell in love.
Y-naga: "That's the thing... It's like trying to find a guy who's a kid at heart but still a responsible adult, so he can be counted on when I find myself in a pinch, somebody who's a little wild at times but normally lets me have my way even when I'...