『Hitoribocchi no Marumaru Seikatsu | OP / Opening FULL』◈【Hitoribocchi no Monologue】

Japanese title: ひとりぼっちのモノローグ
Performed by: Bocchi Hitori (CV: Chisaki Morishita), Nako Sunao (CV: Minami Tanaka), Aru Honshou (CV: Akari Kito) & Sotca Luckythar (CV: Yuko Kurose)

[Alternative anime titles: ]
Japanese: ひ…