Ankoku Kishi Monogatari ~Yuusha wo Taosu Tameni Maou ni Shoukansaremashita~ - Chapter 170.2: Sword Maiden And Silver Witch

The story is about a boy entering high school, who answers a strange call from a public phone one night. The caller challenges him to a bet: She’ll remove the birthmark which he sees as the cause of so many problems, and he’ll have fifty days to win the heart of a girl he’d considered far beyond his reach. And with this, a very strange summer begins.

I became the villain in the story of a hero.

So I was about to quit after fighting the main character.

But she’s obsessed with me. Why…?

It begins on the mountain.

With the glint of a knife, a flash of steel in the hands of a sworn brother. A betrayal.

Stabbed and pushed down the mountain, Zi Chen lied within the red-stained snow, left to die.

This is where it begins; he is given life by lightning,
baptized by thunder.

Those who had once betrayed him should all suffer in his cruel revenge.

- Description from Novelupdates

Don’t be deceived by the title of literary and artistic book, the real title is “Report on Clinical Treatment of Sexual Dysfunction”
Petto talked with his ex for three months, and with his ex for three years, and he is still a virgin today.
It’s not that exes and exes can’t. It’s not him.
In the entertainment industry, you are affected by sexual dysfunction, and you are in the late stage of attacking you.
Very bloody, silly sweet and white.

Content label: entertainment circle
Search keywords: protagonist: Bai Tu, Liang Xi ┃ supporting role: Zhou Niansen ┃ others: main subject, attack and control

- Description from novelbuddy