Kanon and Meimi lead with Ayaka and Rina doing the speaking bits. I'm generally not a fan of talking in songs, but with this song it fits. The MV is lovely, and shot really well. Everyone's facial expressions match the lyrics, and Kana, despite having the least amount of screen time, stands out nicely. I really want to know how they got to film at a running airport, because that seems expensive and like it would take a lot of planning.
Chikyuu wa Kyou mo Ai wo Hagukumu:
My favorite song of the two, lead by Ayaka and Akari. I'm going to dig my own grave and say that I actually don't really care for Ayaka or Kanon, their voices are too squeaky for my taste. That being said, I really like Ayaka's voice in this song. I like the shots where they're split into groups of three, especially when only one or two of them are singing. I didn't realize until I watched the full version that to the left of Ayaka's silhouette is Kanon's silhouette rather than a mirrored version of Ayaka's. Meimi's "Kono chigai wakarimasu ka" is probably my favorite part both in the song and in the video. The star of the video is definitely Ayaka; she looks and sounds so cool throughout the entirety of it. This was supposed to be my thoughts/comments on the song and video and has instead turned into me falling in love with Ayaka. I'm sorry.
Overall this single is great, and both of the videos are very cohesive (the jewelry in Chikyuu wa is to die for). Having different leads for each song was oddly refreshing, and I hope it's something that will happen in other groups *cough*MMandJ=J*cough*, though I do feel kind of bad for Kana since she got gyped.