You're a 16-year-old girl who just learned that she only has a few weeks to live before she gets fatally ill with an incurable disease. You decide that you wanna live out your last few days exploring the world and doing things you could never do before. You travel to Japan, with your parent's approval, and get ready to live out the best adventures, for your last few weeks. You check into a cute motel. Then, you ride the elevator up and notice a hot tsundere checking you out...