Bata pa lamang si Rio ay nagkasakit na agad siya sa puso. He spent his whole childhood in a room filled with medications. Nevertheless, his condition is becoming better and better and as he wished, he decided to go to school to try out new things. Ngunit sa kasamaang palad, his new start wasn't as good as he expected. Not until, Rylie Castillo firstly approached him. The two of them became closer and do the things together with their friends that Rio's can't do when he was in the hospital. Ngunit sa pagtakbo ng kwento ay napagtanto nilang ang mga masasayang araw nila ay panandalian lamang.