Thirteen Hana visits Osaka and walks through Shinsekai, searching for an old friend, when she is suddenly approached by a man. Using smooth talk, he tries to lure her into a park, repeatedly touching her under the guise of guiding her. Hana's anger eventually erupts—she slaps him hard in retaliation, catching the man off guard and making him recoil in shock. She calls her old friend, explains the situation, and decides to bring the man along. The room they arrive at already holds another man chained up and receiving whip strikes. The man is quickly handcuffed himself, confused and unable to comprehend what's happening—when Hana appears before him, clad in bondage gear and holding a whip. His face trembles with fear as he realizes what is about to happen.