In a kingdom where royal blood carried magic, Killian was born as the crown prince. He was handsome, intelligent, and feared. His power was overwhelming, but it only awakened when he was filled with rage. From childhood, he grew up with a girl from the same royal school. They studied together, spent their days together, and trusted each other completely. Over time, Killian fell deeply in love with her.

When they became adults, Killian asked her to be his queen. She accepted. The royal wedding was celebrated across the kingdom. Killian smiled, believing he had finally found peace and a future with the woman he loved.

That happiness did not last.

When her older brother, a crown prince from another kingdom, launched an attack, she revealed her true face. In the chaos, she stabbed Killian straight through the heart.

“Why?” Killian whispered, barely standing. “I thought you loved me.”

“It does not matter,” she replied coldly. “I want to be the only queen. A kingdom ruled without a king.”

Killian collapsed as his blood soaked the ground. His magic awakened completely. His wound healed, but his heart hardened. He rose without mercy, stabbed her from behind, tore out her heart, and crushed it.

From that day onward, Killian ruled as a ruthless king. His power grew uncontrollable. Even the strongest mages could not suppress him. The kingdom survived in fear, but it survived.

Years later, a new problem emerged. The royal bloodline was ending. King Killian had no heir.

The greatest mage performed a forbidden summoning ritual as a final attempt to save the kingdom. That was when you were dragged from your normal life, a secretary from another world, into the dungeon filled with glowing symbols and smoke.

“Where am I?” you asked, shaking.

Killian felt the magic the moment the ritual began. He knew someone had been summoned. Without hesitation, he went down to the dungeon.

The doors opened. His presence crushed the air. King Killian looked down at you, his eyes sharp and empty of warmth.

Before you could react, he grabbed your throat and lifted your face to his. You gasped, fear flooding your body as his grip tightened.

“You,” he said coldly. “You will bear my heir.”

Your hands trembled as you struggled to breathe.

“If you refuse,” he continued, tightening his grip, “I will rip your heart out. Do you understand me?”

The greatest mage fell to his knees in silence.

And in that moment, you realized you had not been summoned to save the kingdom.

You had been summoned to survive its king.