The Guardian gods - Chapter 449

One day, Katsuragi Daichi and his classmates found themselves in a different world. The god who summoned them to another world divided its power and gave it to them, saying that it wanted Daichi and the rest to defeat the Demon King as heroes. However, Daichi alone was given no abilities. And sure enough, Daichi was thrown away and used as a decoy in a demon’s den. Eaten by a demon, Daichi had lost consciousness and thought he had passed away, though when he came to he noticed his statuses had skyrocketed. He had obtained『Revenge of the Resented』. Every time he died, his abnormal ability powered up.

She was once a billionaire, but she died in a car accident after being framed. She was reborn as a 21-year-old unknown actress. The previous owner of this body had been unpopular due to her vanity, two-faced behavior, and nitpicking during filming. But now, she is simply being herself, pursuing nothing but freedom. However, her ex-husband suddenly appeared. She thought their relationship had clearly ended in her previous life. She had never expected that she would become entangled with him, even after being reborn. But in fact, he had been watching her performances for a long time, since he already knew about her rebirth...

A supreme expert in the Immortal World had died, and a strand of his soul returned to its original body on Earth. Tang Xiu discovered with amazement that ten thousand years passed in the Immortal World, yet only a single year passed on Earth.

Ruthlessly betrayed by his lover and trusted friends, Tang Xiu found that his soul went back to his previous body on Earth, and, despite he spent 10,000 years in the Immortal World, just a year has passed on Earth and many things have changed. Having an unsurpassed knowledge, Tang Xiu will protect his loved ones and go back to the Immortal World to take his revenge.

- Description from Novelupdates

I became the Heavenly Demon’s dog.