A lewd duo from Arena Entertainment, Sekesan and Masukakusan, make street pickups in Ibaraki Prefecture their specialty. Racing from train stations to shopping districts and tourist spots, they continuously approach amateur women, persuading them to expose their anuses. Targeting women of all ages—from students to married women—they actively charm their way through the bustling city streets. Gaining attention after appearing in a TV interview, their bold antics caught the interest of a woman who happened to be the older sister they approached in a shopping district. She was on her way to visit a relative in Katsuta.