Jelaskan "Hidari Mune no Yuuki" dari Guru Guru Curtain

Mikumo Ando, Nene Ito, Marika Ito, Yumiko Iwase, Misa Eto, Hina Kawago, Chiharu Saito, Himeka Nakamoto, Seira Nagashima, Seira Hatanaka, Mai Fukagawa, Hina Higuchi, Seira Miyazawa, Rina Yamato, Yumi Wakatsuki, Maaya Wada