After Transmigration, I Got Five Demon Beasts

Lily Avery transmigrated into a book and became the fifth princess, who would die tragically. To change her fate, she saved the future great demon beast, hid her ability, made the tiger beast and the phoenix her contract beasts, and became a tenth-level beast tamer who owned three SSS-class demon beasts. Crushing the enemy's conspiracy, taking down the villains, Lily eventually became the owner of Glorious Castle.