Sayanee is a Theater Edition coupling song for NMB48's 7th single Bokura no Eureka.
Koyanagi Arisa is the center for this song. The selected members for this song are the ones who were not included in Akagumi, Shirogumi, and NMBT. The song was named after Yamamoto Sayaka.
- Team M: Koyanagi Arisa
- Team BII: Ishizuka Akari, Ijiri Anna, Ueda Mirei, Umehara Mako, Kono Saki, Yamauchi Tsubasa
- NMB48 Kenkyuusei: Akashi Natsuko, Ishida Yuumi, Ishihara Masako, Uno Mizuki, Odan Mai, Ogawa Noa, Kawakami Chihiro, Shimazaki Momoka, Takayama Riko, Terui Honoka, Nakagawa Hiromi, Nakano Reina, Nishizawa Rurina, Hayashi Momoka, Matsuoka Chiho, Matsumura Megumi, Miura Arisa, Morita Ayaka, Yamao Rina