How It Feels to be All Alone (Hitoribotchi no Kimochi - ひとりぼっちの気持ち) is the 16th episode of THE iDOLM@STER anime series. It first aired on October 21, 2011.
As Chihaya has nightmares about her past, Hibiki has an argument with her dog, Inumi, as both of them are hosting an animal documentary show. Meanwhile, Kuroi plots to foil Hibiki's role as the presenter of the show by replacing Inumi's role with a less well-behaved dog. As Jupiter are brought on as guests to the show, one of 961 Pro's henchmen arranges for Hibiki to be secretly taken elsewhere and left stranded on the side of a cliff so that hosting duties will be given to Jupiter. As the Producer searches for Hibiki, her hamster, Hamuzō, travels to the 765 Pro office to get help from Inumi and the other idols. As Hibiki realizes she hasn't been able to spend time with her pets due to her busy lifestyle, Inumi and the other animals arrive to help her. As the Producer discover Kuroi's role in Hibiki's disappearance, Hibiki and her animal friends arrive in time to film the show much to Kuroi's anger who abandons his henchman. Now having a better understanding with her pets, Hibiki hosts the show with them.