I'm a magical girl in the future

In a shocking turn of events, Shen Zixin's ordinary life as a 23-year-old senior college student is disrupted by a mysterious encounter with a girl claiming to be his future self. The girl warns him that his sister has become a magical girl and is in dire need of rescue, as her actions will soon put him in grave danger. With no time to ponder the bizarre claim that his future self has transformed into a magical girl, Shen Zixin embarks on an extraordinary journey to save his sister. As he navigates this new reality, he also discovers that his childhood friend is destined to become the final boss in a future conflict, setting the stage for a complex and thrilling adventure that stems from the mysterious magical girl's warning.