A Demon's Journey - Chapter 589 Mission To Destroy Demon Nest

On the first day Yuna became a class teacher, she became well-known in school because of her looks. On the second day of becoming a class teacher, a student secretly took photos of her with his phone and was called to the principal’s office with his Guardian. The person who showed up turned out to be Yuna’s university crush, Xiao Chen.

To Yuna’s surprise, Xiao Chen was the elder brother of the very student whose class she manages. She also realized that this rebellious student causes trouble two or three days out of every week, indirectly giving them many chances to meet.

…

When they reunite again, Yuna is puzzled. Wasn’t Xiao Chen a poor young master in the past? How come he’s now driving luxury cars and living in mansions?

Xiao Chen is also puzzled. Wasn’t Yuna a rich daddy’s girl in the past? How come she’s now dressing plainly and squeezing onto public transport??

…

In the eyes of her students, Yuna is very beautiful but has always been diligent and thrifty, with little interest in money.

However, one day a Rolls Royce showed up outside school, waiting. Upon seeing Yuna, the chauffeur respectfully opened the door for her, “Miss Yuna, please get in.”

From that day forth, her true identity set off huge discussions in school.

Protagonist travels between different anime worlds to right wrongs and uncover his reason for being along the way.

- Description from Novelupdates

Gripes have their origins and debts have their creditors. We haven’t crossed each other in days past or present, nor formed any grudges. I am but duty-bound to carry this out, so apologies in advance!

In his past life, Yang Chen was a gentle person who was oppressed for his whole life.

Now that he’s reborn, he chose to become an executioner and severs ties and grudges with his executioner’s blade, killing all that climb onto the Immortal Executioner’s Platform!

Heads will roll! Humans’ in the human realm, demons’ in the demon realm, devils’ in the devil realm and immortals’ in the immortal realm!

The end of the world is coming, the world has undergone great changes, and everything has changed. Plants, animals, and even insects, as long as there are living things, have mutated.
Become more powerful, and even evolved supernatural abilities, such as chickens and ducks that can fly to the sky, such as cats and dogs that can breathe fire.
But only humans, without any obvious changes, seem to have fallen from the top of the food chain to the bottom of the food chain overnight.
Any creature that can open its mouth to eat can treat humans as food.
But fortunately, this world has not completely killed humans. Gradually, humans discovered that they had the ability to cultivate compatibility with other creatures.
As long as it has a high degree of compatibility with some powerful mutant creatures, it can be used for its own use to achieve the purpose of protecting itself.
Fang He is a person who is very compatible with mutant animals, but it is also because of his ability that he has changed from the strongest to the stupidest.
Fang He, who was reborn, said, “Hmph, this time…”

- Description from novelbuddy