Counterattack System appeared when I'm already At The Mahayana Realm - Chapter 84 - : Calculation

A replica of Marquis Kieran Vale, the son of the Marchioness of Vale, who she deemed a failure. That was all she was. No, she was now referred to as “he.” At least until she met Claude Del Ihar.

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.

“When everyone scorned me because I was merely a woman, I kept convincing myself: ‘Actually, you can give it a try.’” – Fang Feng Sheng

…

There was a famous saying in officialdom: there is no yamen without Shaoxing.

She was the only descendant of the Fang family, the most prominent family of private advisors in Shaoxing.

A calamity broke the Fang family apart. Her father was implicated and put to death, and she cut her way through thistles and thorns to prove her name.

However, walking down this path, she discovered that there were things beyond her imagination.

~ ~

Zong Yue knows that he could marry Fang Feng Sheng because he had blocked all her paths of retreat. But it doesn’t matter—one day, the person will become his, and so will her heart.

- Description from Novelupdates

Seo Tae Hyuk, jailed after being falsely accused.