原作来自辛奎的同名漫画，该漫画改编自吉布森的动画电影。这部电影在原作的基础上增加了一个后续的原创情节；尽管这部电影是一个原创故事，但它忠实地再现了原作的世界观，讲述了原作中的故事，在过去的10年里，这个故事已经成为一个成年人的“雫”和“Saint Si”。在梦想成为一名小说家10年后，清正（清正饰演）成为了一家出版社的儿童小说编辑。她放弃了自己的梦想，也放弃了Saiji（松坂隆饰演），继续在海外追求梦想的人，已经逐渐离开了。清吉已经开始努力工作，以重新找回他们相互鼓励、共同前进的初心。
电视动画《境界触发》第三季的制作决定！
An affluent medical professor, Komiya, and his bossy wife, Tokio, are to look after Setsuko, their high-spirited niece from Osaka. Setsuko is a liberated woman who does what she wants, including smoking, even though she is a minor. On Saturday, the professor does not feel like going to his weekend golf game, but his wife packs him off anyway. So he leaves his bag at the apartment of his student Okada, and goes to a bar with a friend. Setsuko traces him there, and insists that he take her to a geisha house. When she gets rather tipsy, the professor calls Okada to take her home, while he sleeps at Okada's. The wife becomes suspicious of Setsuko when she sees Okada bringing her home, and also of her husband when she discovers that he did not go golfing.
