Aria's world descends into chaos when Crown Prince Julius, the brilliant yet insufferable royal she is sworn to protect as Captain of his Guard, declares her his future bride. Stunned, Aria confronts him, and Julius proposes a way out: if she can defeat him in any competition before the wedding in six months, he will cancel the engagement. But with Julius' unmatched skills, winning will not be easy. Can Aria outsmart the talented prince and reclaim her life?