The Genius Wizard Who Lives Twice, also known as Second Life Wizard and 두 번 사는 천재 마법사, is a captivating Korean web novel that follows the protagonist's vow to protect everyone in their life, even if it becomes a cosmic spectacle. Filled with action, adventure, comedy, fantasy, romance, shoujo, and shounen elements, this novel immerses readers in a world of fantasy where gods, heroes, magic, and wizards coexist. With themes of second chances and a system administrator twist, this story appeals to fans of fantasy worlds and male protagonists.