One Piece: Supreme Check-In System - Chapter 49: Voidreign Kingdom Check-In

Waking up again in his seventh reincarnation, prince Jing Beiyuan found himself back in time, when everything had yet to be set in motion. Having been given a second chance, Beiyuan had to survive court and decide whether it was finally time for him to let go of his feelings; all while trying to handle the youthful, innocent force of nature who had suddenly barged into his already complicated life.

- Description from Novelupdates

How long would a marriage be able to sustain itself when it had nothing to do with love? Then how would a marriage based merely on power and a monetary transaction be able to last?

The person in Shang Yushang’s embrace was his male wife. A temporary wife that was bought to get rid of bad luck. But ever since the moment he had this person in his arms, he decided not to let go of him.

He Changning obeyed his so-called family’s decision and married himself off. Thinking that, when this transaction was over, he can live his own life happily ever after. But, little did he know that he had just stepped into a big net filled with warmth that was specially woven for him, and that he would never have a chance to get out of it.

- Description from Novelupdates

Earth’s top weapon specialist’s soul crossed over to an alternate world, merged with Rebirth Martial Emperor’s memories, cultivating Nine Dragons War Sovereign Technique, sweeping through all opposition with invincible might!

Able to refine medicine, capable of crafting weapons, and knows the art of inscription….

Being skilled in all professions is the way of kings!

This legend tells the tale of the protagonist, Kuroki summoned to protect the demon king from the hero.

Kuroki, unbeknownst to him, suddenly came to another world. He was summoned by the demon king, Modes. The territory which the demon king overrules was in the midst of being destroyed because of the hero. He had no choice but to bow before Kuroki.

“Please save us, Savior Dono!”

Kuroki nodded, deciding to save the demon king due to an unexpected turn of event.