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.
光子力量研究所位于市中心（Oizumi Gakuen mitsuchika CHO，Nerima Gakuen），地下帝国（群马县）的男爵派遣机器野兽女孩“征服世界”，并来骚扰实验室本身和小镇。
