Maou Gakuin No Futekigousha - Chapter 4: The common sense of the demon king is lacking after 2000 years.

A story in which a woman, after learning that the world would end in ten days, sets out to finish one last thing: murder her ex-girlfriend.

However, she ends up befriending, and spending the world’s final days with, the little sister of her ex-girlfriend instead.

【Ding! You have received malicious complaints from patients, and you will be rewarded with system compensation! 】

If you had a bad review compensation system, what kind of person would you choose to be? !

Chen Nan chose to be a good person.

A man who dares to tell the truth.

An upright person.

A man who is not afraid of power.

A man who never compromises.

A person who will never admit to being intimidated in the face of this group of demons and dances!

Those who hold salaries for everyone, can’t let them freeze to death in the wind and snow!

Those who control the water for the common people should not let them indulge in lakes and seas!

For the current struggler, don’t let it drown in the dust!

For the founders of the future, don’t let it go from wide to narrow!

Sad and sighing, if the good cannot end well, can the evil be even worse?

In a turbulent country, I, Chen Nan, would like to observe medical ethics, be clear about right and wrong, and be honest, so that the tragedy will never end!

If I were a doctor, I would be that upright, uncompromising, and upright doctor!

- Description from novelbuddy

The hero who was killed by the demon king ended up reincarnated as the son of the one who killed him! Thus began the life of the hero who donned in the mask of the ideal demon prince to topple his own kingdom while doing his best to prevent anyone from discovering his identity―― But to do that and blend into the demon tribe society, he had to kill his former comrades. Nevertheless, to become stronger, to save humanity, he had to walk through all kinds of paths of carnage! This is the tale of the demon race’s fake prince destroying his own kingdom.

O Hero, Trample Those Who You Should Protect!

TN: Most part of the other character in the novel is depicted from a non-human perspective so expect something that is completely different from the common sense of human.

“Take me in, I’ll do anything you want me to!”

In her previous life, Lu Man is sent to prison after being framed by her step-sister and an asshole. After being released from prison, the only thing that greets her is her mother’s tombstone. Seeing the as*hole and bit*h getting happily along together like one big family with her birth father and step-mother, she sets out to die together with the as*hole and her step-sister in fiery flames.

The moment she opens her eyes again, she finds herself back on the very day she was framed. Resolutely jumping out the window and climbing next door, she seeks refuge from the man occupying the room there. But who would have guessed that the man is the brilliant hunk she has always admired from afar in her past life?

She vows to rub her eyes clean and be more discerning of people. She wants to make everyone who owed her in the past to pay her back!

“Young Master Han, can you let me hug your other arm too?”
“Actually, I have one more, do you want it?”
“…”

- Description from Novelupdates