In Episode 1 of "Tsuma ni Damatte Sokubaikai ni Ikun ja Nakatta," the narrative introduces a married couple experiencing a growing emotional distance. The husband, engrossed in his otaku hobbies, secretly attends a doujinshi convention without informing his wife. During his absence, the wife discovers his hidden collection of adult doujinshi, which awakens suppressed desires within her. This leads to an encounter with a younger neighbor, culminating in an intimate relationship that explores themes of neglect, secrecy, and the consequences of unmet marital needs.