涩谷一梨被厕所冲到了一个不同的世界，这个世界分为人类和恶魔两个种族。魔族体格健壮，年事已高，在实力上也有着独特的优势。人类只有和你我一样的特征，而且在力量方面，它只能依靠挖掘出的能够释放魔法的石头来平衡恶魔种族的力量。
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.
