Maken no Hime wa Ero Ero Desu - 02
Nina explains that the sword has developed a strong affinity with Sheila and that a magical catalyst, derived from a woman's bodily fluids during intimacy, is necessary for further progress. She requests Erik's assistance, revealing that she is a virgin and this will be her first experience. They engage in sexual intercourse, which results in the catalyst being created. This application alleviates Sheila’s symptoms, but it also raises her suspicions about Nina and Erik’s relationship. While outside, Sheila is captured and assaulted by a Slime, which triggers the sword again. Consequently, Nina and Erik must repeat the process of intimacy to produce another catalyst. They engage in sexual activities once more, including a specific intimate position.