Tolong jelaskan mengenai "B Garden" dari Labrador Retriever (lagu)

Team B: Rina Ikoma, Rina Izuta, Natsuki Uchiyama, Ayano Umeta, Ryoka Oshima, Shizuka Oya, Nana Owada, Mayu Ogasawara, Yuki Kashiwagi, Saya Kawamoto, Asuka Kuramochi, Aki Takajo, Juri Takahashi, Miyu Takeuchi, Miku Tanabe, Mio Tomonaga, Wakana Natori, Rena Nozawa, Hikari Hashimoto, Rina Hirata, Seina Fukuoka, Aeri Yokoshima, Mayu Watanabe