Following the previous episode, "Rock-Hard Secret Club" Night 2 finally arrives. This time, miru candidly confesses her simple questions about the male genitalia, sparking an intense debate among Tetsuya Morita, Hironobu Komiya, and Yuuki Hirako over her question: "Why do men always compete over the size of their dicks?" Amid the discussion, unpai, who absolutely loves licking, demonstrates her ultimate nipple-sucking technique that drives excitement to the absolute peak. Meanwhile, Minato Nana seriously consults Yuuki Hirako about her struggles as a porn actress. And finally, the self-proclaimed sex king Yuuki Hirako reveals the truth behind the kind of woman who truly embodies eroticism.