STU48's 6th single, so far the only single this year, was released on February 17th, 2021. The main track is "Hitorigoto de Kataru Kurainara" (独り言で語るくらいなら).
Senbatsu:
- 1st Generation: Ishida Chiho (center), Ishida Minami, Imamura Mitsuki, Iwata Hina, Otani Marina, Okada Nana, Kai Kokoa, Kadowaki Miyuna, Takino Yumiko, Fukuda Akari, Yano Honoka, Yabushita Fu
- 3rd Draft: Oki Yuka, Nakamura Mai
- Kenkyuusei: Takao Sayaka, Harada Sayaka
This is Ishida Chiho's first single as the center, and Takino Yumiko's first single in a non-center position.
MV:
Coupling tracks:
- Type A:「サングラスデイズ」(Sunglasses Days) / by selected 1st Generation (Ishida Chiho, Ishida Minami, Imamura Mitsuki, Iwata Hina, Otani Marina, Kai Kokoa, Sakaki Miyu, Takino Yumiko, Taniguchi Mahina, Hyodo Aoi, Fukuda Akari, Mineyoshi Arisa, Morishita Maiha, Yano Honoka, Yabushita Fu) & 3rd Draft members (Oki Yuka, Shinano Soraha, Nakamura Mai)
- Type B:「僕はこの海を眺めてる」(Boku wa Kono Umi wo Nagameteru) by Setouchi PR Unit (special sub-unit created for this single, consisting of 1st gen members Ishida Chiho, Iwata Hina, Kadowaki Miyuna, Takino Yumiko, Fukuda Akari, Yabushita Fu, and 3rd Draft member Oki Yuka
