While playing his recently bought dating sim games, Keima plays one called "One Leaf". At first, he assumes it's a terrible game due to it's horrible character design but quickly falls in love with it's heroine, Yotsuba Sugimoto, aka "Yokkyun", as 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 chargin and Haqua's confusion. Later that night, Keima receives an email from the game studio that created "One Leaf", who asks Keima to help them create the perfect dating sim game under his direction. As Keima think of ideas for the game, his inner minds soon starts arguing over what is the ideal and perfect dating sim which leads to an intergalatic war. But the war finally stops when all of them remember about Yokkyun and what is important that makes the perfect dating sim game. Finally making a decision, Keima decides to tell the studio to just make a good game. As the season finale come to an end, including a preview of the new cast of heroines for Keima in the next season, Keima ends the episode saying he used to think games were the ideal world and real life was just a bad game. But after learning that a perfect world can be found in a bad game, then he can also find it in real life as well.
ある夜、自宅で一本のゲームを手にとった桂馬。そこにいたのは、あまりにもひどい絵で描かれたヒロイン・四葉。何気なく手にしたそのゲームによって、桂馬のすべてが変わる？──数多の女子を恋に落とした神、桂木桂馬。ついに彼は理想のエンディングを見ることができるのか……!?
어느 날 밤, 평소와 마찬가지로 게임에 열중하던 케이마는 새로운 게임 하나를 집어들게 된다. 그리고 그 게임에 있었던 건, 너무나 어설픈 그림으로 그려진 히로인 요츠바. 무시코 손에 집어든 그 게임은 케이마에게 엄청난 변화를 불러 일으켰는데...? 수 많은 여자들을 공략해낸 함락신, 카츠라기 케이마는 마침내 그가 이상으로써 꿈 꾸는 엔딩을 맞이할 수 있을 것인가!?
