Jun Karentia, reborn into a gaming world as a support mage, leverages her extensive game knowledge to team up with the main character, Fabian, aiming for a favorable ending. But she soon discovers a twist: the game doesn’t end with just one playthrough. On the second run, Jun prepares to guide Fabian to the true ending, only to be unexpectedly abandoned. Alone, she crosses paths with Grand Duke Mayer Knox, the captain of the Dark Knights and the hidden final boss, who is determined to recruit her.