女高中生河本加奈和她的朋友pez、圣、阿满过着平常又有趣的日子，直到骑着机车的宇宙警察晴子闯入她们的生活。与此同时，这个世界正在遭遇外星人的侵略……

A black haired girl is walking around the streets of Kyoto, from the night scene of Pontocho to a second-hand book fair in Shimogamo, then off to a college fair. The main character that has a romantic feeling for her secretly follows her around and looks for the opportunities to run into her in a manner that seems like a coincidence. Unfortunately for him, she is not interested in love yet, so she does not notice his feelings. What awaits these two characters are a series of crazy incidents caused by bizarre individuals, such as a person who introduces himself as Tengu, the god of second-hand books, or a money lender, who collects young men's underwear and lives on a three story barge. (Source: Sugoi Japan, edited)

Moshimo, Japan. The annual fireworks festival is about to take place and a group of schoolboys, arguing over whether they are round or flat when viewed from different angles, set out to find it out.