The World's most Overpowered Side-Character - Chapter 5: The Contract.

In regards to the MMORPG Cross Reverie, Sakamoto Takuma boasted an overwhelming strength that was enough for him to be called the Demon King by the other players. One day, he gets summoned to another world with his appearance in the game. There, there are two people that insist “I am the real summon master.” Takuma gets slave-turning magic used for summoned beasts cast on him by the girls –

(A cruel, merciless, inhuman, Prime Minister gong x (previously) a cute, naive, foolish prince shou)

As an alluring beauty, the Ninth Prince Qi Changyi inherited his mother’s looks, but was unfortunately a bit s*upid. Not only did he live in fear, even within palace walls, but he also merely lived as a substitute in his beloved’s eyes. Then, while being used and tormented, his delicate, pure heart finally burned to ashes.

Pei Zheng was the Prime Minister of the Imperial Court, a man of great status; he gained it all through the most ruthless methods. He was known for his cruel nature, but gradually, he became close to the unfavored ninth prince.

“Your Highness, just now, at court, who were you looking at? Huh?” Pei Zheng squeezed the small man’s delicate little chin.

Qi Changyi’s eyes were misty with tears of pain, “I, I wasn’t.”

“Stop trying to seduce others.” Pei Zheng’s voice was frigid. “Otherwise, I’ll make sure that General Zhao, for whom you pine, dies on the battlefield!”

He thought he had a firm grip on this little fool, but he could’ve never imagined that one day, this little fool would leave his side carrying a broken heart.

“Brother Pei, I’m leaving now, you should be happy.”

With scarlet eyes and a heart burning with obsession, he searched everywhere, but found no trace of him.

“I won’t, without you, I’ll never be happy again. Your Highness, where should I go, how can I bring you home?”

1v1, happy ending! But the path leading up to it is laced with sweetness and cruelty.

- Description from Novelupdates

“So, you have been lying to me all this time?”She raised her head and realized that the face of her senior brother, one who she knew so well, was unfamiliar and scary.“What are you talking about?” Her senior brother scoffed and shook his finger. “All I can say is that none of you knew who I really am.”He then turned around and walked towards the Sky Throne, a symbol of absolute power.Master Sword Aura, Sea of Flame, Star Light…The dozens of skills that were used to stop the man from approaching the Sky Throne simply bounced off him. All the skills simply vanished into thin air.“No!” Xu Yingling bit her lip and turned to look at An Zhisu and Shi Liuli.They exchanged glances. All the despair, sadness, fear, and even love, were now meaningless. The only thing that was important at the moment was to stop that man.…A cultivation novel. The main character used his cheat ability, Time Travel, to secretly live among all the powerful sects while learning their skills. He eventually managed to gain the power to approach the Sky Throne and become an immortal.However, it seemed that things weren’t going as smoothly as he had planned…”