Endearing Little Promises

She's Lou Nylei Damandre- a cute, caring yet tsunderic kind of 15-year old girl who have been mature and aware of her surroundings despite her appearance. Like any other girls, she promised to capture his crush's heart, Lei Roland De Guzman, an 18-year old rich guy, and marry him in the future. Yet, her hopes suddenly vanished when a disorder challenged her fate as Leiro's lover. And the worst part is that Lou has to accept a decision she wouldn't want to happen, just for the sake of her wish. Will our cute little Lou handle this situation at a very young age? Will she still be able to keep her promise between Leiro and her? Together, we'll find it out...