Kim Min-joon is an ordinary software engineer who suddenly finds himself transported into a futuristic world where humans have advanced technology and the ability to freely travel throughout the universe. To his surprise, he discovers that he's been inserted into the plot of a popular virtual reality game as an "extra" character. Initially overwhelmed by the game's advanced technology and the magical abilities of the protagonists - a group of magic users attending the prestigious academy - Kim feels out of place as someone from a less advanced world with no expertise or knowledge to offer. But as he becomes more involved in the academy's community, Kim discovers he possesses unique talents that catch the attention of the academy's elite. With their help, Kim learns to harness his newfound abilities and become a valuable member of the team. As the dark force that threatens not only the magical world but also Kim's original world intensifies, Kim must confront his fears and limitations to become the unlikely hero the world needs. With his unique talents and the support of his new friends, he must help save both worlds. Will Kim be able to use his abilities to defeat the dark force and become a true hero, or will he succumb to the overwhelming power of evil?