That Would Be Truly Wonderful Mahô shôjo Madoka magika: Puella Magi Madoka Magica : Season 1 Episode 2

While rescuing Kyubey from being attacked by Homura, Madoka and Sayaka lose their way in a mysterious space. They find themselves in a desperate situation and are rescued by Mami Tomoe, a magical girl. Afterward, Mami invites them to her room.