My Love Story with Yamada-kun at Lv999

College student Akane Kinoshita is left devastated after discovering that her boyfriend has been unfaithful with a woman he met through an online game. Heartbroken and furious, she channels her frustration into the very same virtual world, aggressively battling monsters in the open hunting grounds to relieve her stress. During one of these chaotic sessions, she crosses paths with a fellow guild member named Yamada. In a moment of vulnerability, Akane pours out the entire story of her painful breakup to this stranger, only to be met with his blunt and indifferent response: he simply does not care. Determined to move forward and get revenge on her ex-boyfriend, Akane decides to reinvent herself with a fresh makeover and attends an offline gathering for the game's players. However, her plans take an unexpected turn when she hears that same dismissive voice once more. Standing before her is the real person behind the avatar she vented to in the game. This surprising reunion marks the beginning of Akane's fateful encounter with Yamada, setting the stage for a story that bridges the gap between their digital adventures and reality.