Tolong jelaskan mengenai "Okuba" dari Bokura no Eureka

Tim N: Mayu Ogasawara, Rika Kishino, Haruna Kinoshita, Yuuki Yamaguchi, Kanako Kadowaki, Sayaka Yamamoto

Tim M: Yuki Azuma, Natsumi Yamagishi, Nana Yamada, Ayaka Murakami

Tim BII: Konomi Kusaka, Emika Kamieda

Tim N: Miori Ichikawa, Narumi Koga, Rina Kondo, Miyuki Watanabe

Tim M: Ayaka Okita, Rena Kawakami, Momoka Kinoshita, Mao Mita, Fuuko Yagura

Tim BII: Hazuki Kurokawa, Rikako Kobayashi, Kanako Muro

"Hinadan dewa Boku no Miryoku wa Ikinainda"

Dibawakan oleh Namba Teppoutai Sono San

Tim N: Miru Shiroma, Aika Nishimura

Tim M: Sae Murase, Keila Yogi

Tim BII: Hono Akazawa, Yuuri Ota, Rina Kushiro

Tim BII: Akari Ishizuka, Anna Ijiri, Mirei Ueda, Mako Umehara, Saki Kono, Tsubasa Yamauchi

Siswi pelatihan: Akashi Natsuko, Yuumi Ishida, Masako Ishihara, Mizuki Uno, Mai Odan, Noa Ogawa, Chihiro Kawakami, Momoka Shimazaki, Riko Takayama, Honoka Terui, Hiromi Nakagawa, Reina Nakano, Rurina Nishizawa, Momoka Hayashi, Chiho Matsuoka, Megumi Matsumura, Arisa Miura, Ayaka Morita, Rina Yamao