When Eun-kyung presses her for answers, Ki-bun skirts around the truth, offering a version that differs subtly from reality. Eun-kyung refuses to return the sperm donor record to Ki-bun, and Ki-sik begins to sense something suspicious in Eun-kyung's behavior. Meanwhile, while presenting the research findings, Marie makes an unexpected request to Poong-ju regarding the test subject K-1.
