Donghae has suffered from cancer his whole life. He kept it secret from everyone except his best friend. His Dad was there but it was difficult when he couldn't afford the fees for the treatment. But when Lee Hyukjae the school’s formidable rich boy shows up at the hospital one night and spots Donghae his curiousness kicks in and he wants to know the truth behind the quiet boy. He gradually begins to care, and Donghae wonders why Lee Hyukjae of all people would bother with a person who had darkness as his future.