My older sister Lee Hyuna has always been the bright, capable one. Then a few months of shortness of breath turn into a diagnosis: a heart condition caught too late. If nothing improves, she probably has a year. She quits her job, chases skydiving and motorcycles, and crosses everything she can off her list on her own. Except one thing. She always dreamed of getting married, and there is no time left to fall in love. So she shows up at my studio apartment with a proposal. Not a real marriage, just a pretend one. A wedding hall with no guests, a real white dress, a newlywed home, and me calling her "honey" at crosswalks. I'm Lee Hyunjun, drifting from one part-time job to the next, and I can't say no to a sister who might be gone within a year. One year of playing house begins.