In a time unknown, only a prophecy keeps hope alive in people's hearts: "When darkness veils the world, the King of Light shall come." Now, four brave warriors begin their journey, prepared to fight. What awaits the four, however, they do not know. -Beginning of Final Fantasy XV

In the city of Insomnia, a young king and his comrades are struggling to fell a mysterious being which has brought ruin to the city, and overwhelms the group with its fiery attacks. After shielding themselves from its barrage of flames, the group readies their next attack and charge forward...

In the present, Noctis Lucis Caelum, is given the blessing of his father King Regis of his safe trip to Altissia. As they leave, Regis tells Noctis's retinue Gladiolus Amicitia, Ignis Scientia, and Prompto Argentum to always stay beside his son on his journey. Regis reminds Noctis to be well mannered to his fiancee Lunafreya Nox Fleuret. As a final sendoff, Regis tells Noctis that once he leaves, he cannot return, and that the line of Lucis flows through his blood. Though Noctis playfully dismisses this, Regis tells his son to walk tall.