I Don't Know the Original, I'm Too Busy Trying to Make a Living - Chapter 146

When Shu Tang, a sickly young woman, fell ill and passed away in the 21st century, she thought she would finally be able to drink a bowl of Meng Po’s soup, take a trip across the Neihe bridge, and not be such a sickly person in her next life.

But, after her soul left her body, forget about Meng Po’s soup, she didn’t even see soup dregs before being transmigrated into the body of a pig!

After being adopted by Fuyu Shangxian, one of the three great immortals and heaven’s peerless beauty, hilarity ensues.

- Description from Novelupdates

After transcending to a new world, Ye Xuan miraculously obtained the Swallowing System.

Because of his own carelessness, Duanmuhuai crossed into the world of the game “Xinghai OL”. Starting from a small core cabin, Duanmuhuai crossed the galaxy, traveled to countless worlds, awakened the power that had long been dormant, and fought against the hidden depths of the universe. The threat to dominate the galaxy!

==========================

Produced by Xibei cat, complete book guarantee

- Description from novelbuddy

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.