Yuji Fujiwara’s life has been a relentless stream of misfortunes. From a childhood marked by false accusations, including being blamed for breaking a vase he never touched, to losing his job due to a colleague’s error, bad luck seemed to be his constant companion. At the part-time store job he holds, a younger girl named Takamiya consistently pins the blame for mistakes on him, even when they were committed by others. As he returns home, carrying the weight of these disappointments, he encounters a mysterious girl, a shape-shifting slime that has taken on yet another intriguing form. The creature has developed an attachment to Yuji. Trying hard to capture his attention, the shape-shifting slime transforms into the appearance of Takamiya-san, his coworker, and seduces him.