The second generation of Subaru's popular Impreza. Subaru focused its development efforts on improving collision safety in the second-generation Impreza. Accordingly, the body design was redesigned, the body size was increased, and the body rigidity was dramatically improved compared to the previous generation. At the time of sales of the second-generation Impreza, Subaru was searching for a new design direction, and the second-generation Impreza underwent two major front design changes in line with the change in Subaru's design direction, resulting in the rare model that had three completely different front masks during the model cycle. In addition, as in the previous generation, a rally-based WRX model equipped with a 4WD mechanism and a turbo engine was set up as a base machine for competing in the World Rally Championship (WRC), boasting high dynamic performance on various surfaces such as dirt, snow, and tarmac. Rally cars based on this model won the WRC drivers' title for Richard Burns in 2001 and for Petter Solberg in 2003.

The main character, Haruki Chitose, has a perfectly peaceful everyday life. Drop your cell phone, and you're in the water. He lost his wallet countless times. If he pedals, he gets into an accident, and if he walks the streets, he gets into trouble. ......... Even if it is what other people would call a misfortune, this level of trouble does not count as a "normal" day-to-day life for him. Haruki is living a peaceful (?) life, dealing with such endless troubles. One day, Haruki received a delivery unexpectedly. The package had no name, no sender, and only a sticker that said "living thing. Even Haruki, who spends his daily life in trouble, could not have expected to receive such a package. He never expected a "girl" to be delivered. ...... This was not a "new misfortune" ............ that Haruki got, but his "first good luck" and the start of a new wave. I came here to wipe out Haruki's misfortune!　 The girl who claims to be a "god" and stays at his house under the guise of protecting him from trouble ....... Her actions cause new problems, and before she knows it, a small trouble turns into a big commotion involving the people around her! In the midst of these crazy days, what will the "good luck" Haruki gets bring about? What is the purpose of the girl who claims to be a god? Will the misfortune that haunts Haruki disappear? The answer lies in the mayhem that is about to begin!

She is the younger sister of the main character who loves her brother. She is a first-year student at Mizunagi Gakuen and does all the household chores in the Chitose household, including cooking and laundry. Her hobbies include observing her brother and taking care of him. Normally, she is kind to everyone and has a quiet personality, however, when her brother is involved, she shows unexpected energy. She is shy when it comes to love, and when she is alone with her brother, she tends to go berserk.