B-side impressions:
"Makeru Ki Shinai Konya no Shobu": I like this one quite a bit -- it reminds me of an updated take on a classic style of idol song (if that makes any sense). I like all the "oh oh oh"-s.
"Bouya": This one is my favorite. I'd like to hear a rearranged version in a classic pop-rock style (kind of like the instrumentation of "Morning Coffee," I'd say); I think that would work really well. (My god, I'm liking most of the Sayu-led songs lately. What's wrong with me? Robo-Sayu conquers all, I guess.)
"Funwari Koibito Ichinensei": Maybe my opinion will change, but right now I really don't like this song at all. It's not very catchy to my ears, and kind of meanders.
Overall, I love four of the five tracks from this single, which is pretty darn good, I think. It's definitely my favorite overall MoMusu single (i.e. A and B sides considered) in quite a while.
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On an unrelated note, I'd just like to say: if you like this single and want to support MoMusu, please consider buying it on iTunes if you can. I was reading another board earlier where people were discussing uploading and downloading the single. I mean, you can have all the A-sides and B-sides from this single (minus instrumentals) for less than $7 (if you live in the US like me). You can seriously get a $10 iTunes gift card and get all the songs. I know we like to complain about Up-Front, but one place they need to be commended on is having 95% of the current Hello! Project songs up on iTunes for purchase by overseas fans. I understand downloading obscure/hard to get acts (because I know how expensive importing can be), but MoMusu (and C-ute, Berryz, S/mileage) are RIGHT THERE on iTunes.
/gets off soapbox
(Sorry for preaching.)