Flag.12.0 Summer Wars.Though with its poor character design, Keima plays a bishōjo game called "One Leaf", yet quickly falls in love with heroine Yotsuba Sugimoto, believing she is his ideal game heroine. Keima enjoys the game so much, that he decides to play it at a slow pace, ignoring everyone throughout the whole day, much to Elsie's chagrin and Haqua's confusion. Later that night, Keima receives an email from its game studio, who asks Keima to help them create a bishōjo game under his direction. As Keima thinks of ideas for the game, his inner minds soon start arguing over what is ideal and perfect. However, this war finally stops when all of them remember the importance of a bishōjo game. With that in mind, Keima contacts the game studio to tell them to make a good game. As the season finale comes to an end, including a preview of the new cast of heroines for Keima in the next season, Keima ends the episode saying that although he does not accept reality, he can still discover a way to be a part of it.