In two special episodes, viewers get a glimpse into untold tales. Episode 0 delves into Ritsu and Takano's past relationship from their high school days, marred by a misconstrued event that led to their breakup. Meanwhile, in Episode 12.5, Hatori and Chiaki embark on a visit to Chiaki's family, navigating through an uncomfortably awkward experience filled with numerous cringe-worthy moments.