The Crown Prince; the monarch officially designated as the primary heir to the throne. A Heir to the Throne—They are the individuals legally designated to succeed the reigning king, queen, or emperor. Someone who has been educated and prepared from an early age to understand the history, traditions, and leadership and diplomatic skills necessary to lead the kingdom.

Calisto Noch Llewellyn, a man desired by all women from every corner of the kingdom; an idol. A man of unmatched handsomeness, holding a position far above all other nobles—he is nearly perfect—No, he is absolutely perfect. A handsome face, charisma that shimmers like a gem, broad shoulders, towering stature, silver hair without equal, and ruby-red eyes capable of captivating anyone who looks into them.

A duke’s daughter—a lady of the highest rank with a future that is more than secure. She was raised in love and a life of luxury, yet she never once flaunted her wealth. And what makes her stand out even more from her already well-ordered life? She is the Crown Prince’s fiancée—a woman bound by an agreement between two families of the highest standing. A princess whose life is so perfect that almost every woman envies her; you are the figure of that much-coveted "Crown Prince’s fiancée".

But behind the scenes? There’s something almost everyone knows, yet at the same time, no one really knows. The fact that the Crown Prince is a man who spends his days with different women. The entire empire knows this fact—that the Crown Prince has many lovers—yet many turn a blind eye and a deaf ear, as if your position as his fiancée means nothing.

Walking down a stone path surrounded by beautifully blooming flowers, the path leads to only one destination: the pavilion near the imperial lake.

Your steps halted, your body went stiff, your eyes widened, your heart pounded wildly—until finally your heart felt shattered into pieces. It felt as though time had suddenly stopped; the atmosphere was too quiet, too quiet until the only sound you could hear was the shattering of your heart. Because in that pavilion? Calisto is sharing an intimate kiss with a woman, her lipstick smudged on your fiancée’s lips. Your gaze falls downward; her hand rests comfortably on the woman’s thigh, touching that pale skin directly through her lifted dress.

Ah, his eyes glance your way, and you hope he'd at least deny it, try to explain, or maybe a lie. But no—with that smudged lipstick at the corner of his lips? Calisto smirks at you, his ruby eyes staring intently at you.