Yotsu is the second one.
Anyway, this is such a tease. It ain't ever happening so it feels a bit strange to do now, even as a callback. I'd still prefer the polyamorous ending -- not really for the 'gotta fuck'em all' reasons that most support it for, but just so each one is happy and they can all stay together. Obviously it's not realistic or even practical to do, though.
We do have some snooty cafes here though, huh? Although, my friend who lives in Kyoto and I were on the topic of Starbucks a couple week's back and he was telling me he avoids a lot of cafe's and coffee shops because of snobby people, unless he's on a date. Guess it's a worldwide thing. I've always imagined that Japan has a much larger amount of cafe's per area when compared with other places around the world. I guess we'd have to clearly define 'cafe', though.