Known as the top player in the virtual realm of Attack Families, Fumiya Tomozaki struggles with social ineptitude in his high school reality. Isolated and friendless, he attributes his failures to life's complexities, deeming himself a low-level character. A chance encounter with another elite gamer reveals Aoi Hinami, a popular and charismatic classmate, as his unexpected mentor. As Aoi guides him through the intricacies of real-life gameplay, Fumiya embarks on a journey to level up in the grandest game of all—life itself, braving the challenges of human connections and personal growth.