When Shin Yeonji moves to a new city for a fresh start, she never expects to find comfort in the quietest place of all, the empty seat beside Choi Soobin, the cold and distant top student everyone avoids. While Yeonji's bright, chaotic energy quickly draws people in, Soobin keeps his walls firmly up... at first. But between cute compliments, small acts of kindness, and the slow comfort of everyday moments, the space between them begins to shrink. What starts as an awkward seat assignment turns into something neither of them planned, because sometimes, the person sitting next to you becomes the one you can't live without.