故事的背景是在202X年，当时技术已经达到了一个新的水平，普通的笔记本电脑已经无法满足时代的需求。被称为“电脑眼镜”的新技术产品在儿童中很受欢迎。通过镜头，可以获得类似电脑和手机的功能，轻便的物体也在成年人中流行起来。
Video artist Ryosuke visits the suburb of Furano in Hokkaido, tuikan.cc where his friend lives, in order to shoot a video. His car breaks down and Ryosuke decides to walk to a house and ask for a phone. The person that opens the door is his former girlfriend and first love Haruka. They meet for the first time in 23 years. Even though Ryosuke knows that she is married, he takes her to his video shooting and they get close. Ryosuke leaves Hokkaido in 2 days and he asks Haruka to spend one more day with him.
那是一个温暖而哀伤、绝望但坚强的故事；也是一个贴近生命，与我们一同呼吸的故事。关于「鹿王」的故事：当飞鹿群遭到攻击时，只有一头鹿会跳出来牺牲自己、保全同伴的生命――因为它生而如此。有些生命诞生的意义，就是为死而生。
