Elite soldier Jeong Jino accepts a super important mission to save the world, but his mission is to become a magical ahjussi?! What’s more, the second he transforms, his team starts acting up, saying he smells really good and tries to pounce him. In the middle of this awkward situation, the one who comes to Jino's rescue is none other than Elia, his long-time nemesis and another elite soldier in the military...!?