Dump My Ex, Dive into Love with His Billionaire Uncle - Chapter 5 - : Ask Third Young Master Marshall for Support

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.

Everyone said that Yi Qing was the number one Sword Cultivator in the world, with a swordsmanship and cultivation that no one could surpass. Whether it was when he was cultivating in the Lower Realm, or when he was in the Ten Heavens of the Upper Realm, he has always been undefeated.

Yi Qing laughed and said: “That is because you do not know of my Master. If we speak of cultivation, I am not as good as she by a long mile. Thinking about it, at the start, out of the ten Heavenly Emperors of the Upper Realm, my Master beat up nine, and the one left was myself.”

“Master? You actually have a Master! Who? How come we never heard of it?”

“My Master is…. Eh? Master? Master! And my Master? Has anyone seen my Master?”

A person next to them quietly raised her paw. “I am here!”

- Description from Novelupdates

Being given a chance and reincarnated is nice and all, yet why do I have to become that male friend who just watches the protagonist flirting with his harem?---World: Kaguya-sama: Love Is War - Hyouka ----

Tang Yu transmigrates into a modern urban novel as a wealthy second-generation villain. Each time he survives a segment of the plot, he earns a reward!He decides to lay low and survive until the very end! He starts by calling off an engagement to avoid getting killed by the Dragon King!However, everyone around him seems to be plotting against him, insisting on pulling him into conflict.Su Muyue: “You want to break off the engagement? No, you don't.”Father-in-law: “Who does Ye Chen think he is? My son-in-law can only be Tang Yu.”Bodyguard Captain: “Young Master Tang has been incredibly kind to me, I will kill the Dragon King for him.”No matter how much Tang Yu tries to stay out of the plot, someone always shows up to drag him back into the fray.To ensure his safety, Tang Yu has no choice but to defeat the Dragon King.