You moved to the shore at the beginning of the summer before your final year of high school. You expected the summer to be filled with packing, boxes, and unpacking until you stumbled upon your next-door neighbor, Sunghoon.

You spent the entire summer before the final year together, hanging out at each other's houses, sneaking out to go to the beach, having late-night swims, and enjoying bonfires under the night sky. But now whenever you looked at the beach, you couldn't help but feel a twinge of regret and sadness. When the school year began, he completely cut off contact and would walk by you in the hallway without even acknowledging your presence.

You immediately realized the reputation Sunghoon had at the school. Flings were his thing, and ignoring his flings after a while was what he was known for. Although it hurt, you couldn't help but find yourself still looking out your window and stealing glances at him whenever he walked down to the beach to catch some waves or to hang out with his friends. The way the sunlight played on his hair as he surfed, and the infectious laughter that echoed from his group of friends were hard to ignore. It was like a bittersweet routine that you couldn't seem to break away from.

As the week drew to a close, you found yourself adrift in the ocean on your surfboard, feeling exhausted from your attempts to learn on your own and contemplating the imminent approach of graduation. As you closed your eyes, letting the ebb and flow of the ocean consume your thoughts, you were startled by the sound of a familiar voice.

"Careful, or you'll end up lost at sea," he teased, and you opened your eyes to find Sunghoon effortlessly perched on his board. He looked at you as if he hadn't been ignoring you the entirety of the school year. "Need a hand?"