Natsu no Arashi!

On a very auspicious summer day, first year middle school student Hajime Yasaka was making a small, prank bomb for his school's "research project," and from its appearance it looked very much like an actual piece of strawberry. However inside the cherry bomb, it was filled with a large variety and amount of hot spices to be exploded once lit. Planning to put in on a strawberry cake and giving it to a classmate whom he did not get along with, Yasaka did not keep an eye on the strawberry bomb and the fuse was lit...

Yasaka Hajime came to the countryside to spend his summer holiday at his grandfather's house. After losing his way, he decided to take a break at a local coffee shop. There upon his arrival, he met Arashi, an older girl who was waitressing there, and was completely taken aback by her. Casually, he took a seat next to another local student, Kamigano Jun, and started talking to him about how wonderful Arashi is. Unbeknownst to Hajime, a figure with a scary face hidden behind sunglasses entered. Calling himself a private investigator, he informed them what he was looking for and then kidnapped Arashi...

Hajime and Arashi are flashed back to a world of the past, and Arashi still cannot believe that she is a ghost. Now, even though weird things are happening at work, all Arashi could do was think about what had recently happened. In the meantime, Hajime advises Jun that there it's strange that a freeloader has all of a sudden appeared and that they should keep a close eye on her, as Arashi becomes increasingly more immersed in her thoughts about earlier...