As the end of high school approaches, Makoto Konno is confronted with uncertainty about her future. The pressure of meeting her teachers' expectations and the support of her closest comrades add to her struggle. However, Makoto's life takes an unforeseen turn when she discovers her remarkable talent for time travel. Toki wo Kakeru Shoujo follows Makoto's exploits as she navigates the challenges of her newfound ability. Nevertheless, she swiftly learns that each choice she makes comes at a price and that time possesses a degree of complexity that mustn't be underestimated.