Synopsis:

In June 2021, first year high schooler Hodaka Morishima escapes Kōzu-shima in order to get away from his troubled home life to Tokyo. When his ferry to the city is hit by a rainstorm, he is saved by Keisuke Suga, who gives Hodaka his business card. As Hodaka becomes broke and struggles to find work, he meets Hina Amano, an employee of a McDonald's restaurant. She takes pity on him and gives him food. Later on, Hodaka finds an abandoned Makarov PM handgun in a waste bin he fell onto. After arriving at Suga's business location, he meets him there and his niece, Natsumi. Suga hires him as his assistant at a small occult magazine publishing company, where they investigate urban legends related to the unusually rainy weather in Tokyo. From a psychic, they hear the legend of a "sunshine girl" who can control the weather.