Team A: Itano Tomomi, Oshima Mai, Kojima Haruna, Shinoda Mariko, Takahashi Minami, Nakanishi Rina, Maeda Atsuko, Minegishi Minami.
Team K: Akimoto Sayaka, Oshima Yuko, Ono Erena, Kasai Tomomi, Miyazawa Sae.
Team B: Watanabe Mayu
Boku no Taiyou is a song about having to be optimistic, and not worrying all the time.
The MV has the dance version, wher I admit I like the costumes, and the main segemt is about the girls just enjoying themselves and having fun at school.
Mirai no Kajitsu is about enjoying ones youth, and seems to give an encouraging message.
Sorry I haven't said much, but there didn't seems to be much for me to put this time. Stick around in a couple of minutes time.