First up, it transpires the main character of Noctis Lucis Caelum, or "Noct" as he's often referred to, suffered a childhood affliction that has left him able to see a heavenly light that enables him to sense others' deaths. Despite being the heir apparent to the throne of Lucis, Noctis rejects royal convention even to the point of being something of a renegade, though his loyalty to those around him is unquestionable.
Next, Gladiolus Amicitia is lord of the noble House Amicitia, which is sworn to protect the crown. Despite this, the bond between "Gladio" and Noctis goes deeper than simply being one of duty, but is instead one of friendship.
Ignis Scientia was raised to offer his unwavering voice of reason in counsel to Noctis. Weaned on shrewd logic and a classical education from youth, he and Noctis share a deep mutual understanding and trust built on years of familiarity.
Prompto Argentum is a mischievous playboy who knows Noctis from school. Being from outside the royal circle has left him with a chip on his shoulder, but he's still eager to help in any way he can.
Finally, Lord Commander Cor Leonis is a living legend, completely devoted to the king. Though he and Noctis' ragtag band of followers rarely see eye to eye, he is honour bound to protect them.
Additionally, accompanying text about the plot reads, "The only crystal left to the world lies in the Kingdom of Lucis. Upon striking a peace with the garrison state of Niflheim, Lucis rejoices in having at last brought the cold war to a close. Their celebrations, however, are premature. Under the guise of amity, Niflheim dispels the anti-armament runewall and launches a full-scale invasion of the kingdom. The peaceful lives Crown Prince Noctis and his entourage once knew are consumed by the flames of war as they struggle to mount a resistance."
