Ys Book I & II chronicles the first adventures of Adol Christin, a young, red-haired swordsman on a quest to unlock the secrets of an ancient kingdom. As Adol, you search the island of Esteria, gathering clues to unravel the mystery of Ys. Fight monsters that lurk in caves and towers with physical or magical attacks, and use your brain to make your way through dangerous areas filled with traps.