The dragon prince Ariel devoted his dragon blood and wholehearted devotion to supporting his lover Henry in his past life, only to be framed by Henry and his attendant in a joint plot, and eventually wrongfully executed on the guillotine. Reborn, he finds himself back on the day of his wedding, and all his former innocent love has turned into bone-deep coldness. He plans every step carefully, using his wisdom and dragonic divine power to strike back at his enemies, while responding to the long-hidden protection and deep affection from the knight Thomas. As palace power struggles and magical duels unfold one after another, Ariel uncovers conspiracies and crushes enemies along the way, foiling the schemes of the puppet ruler, the abyssal monsters, and the ancient threats in succession, completely overthrowing the decaying royal power, and embarking on a new journey to confront the ancient ferocious god side by side with his true love.