In Episode 4 of "Modaete yo, Adam-kun," titled "Finding a Fiancé," the narrative centers on Yui Kurumizawa, an heiress from a wealthy family. Under pressure from her grandfather to find a suitable fiancé, Yui is tasked with identifying a man unaffected by the widespread erectile dysfunction pandemic. Her search leads her to Kazuki Sonomiya, the only male known to have escaped this condition. The episode explores Yui's strategic approach to securing Kazuki as her fiancé, highlighting her determination and the complexities of their ensuing interactions.