Qin Tianzhu, Qin Huairu's Cousin in the Siheyuan

The following is the revised, polished, and expanded version:

After transmigrating as Qin Huairu's cousin, Qin Tianzhu was filled with helplessness and frustration. Looking at the strange world around him, so steeped in the spirit of the times, he felt a jumble of emotions. But then he thought, since he had already transmigrated here, complaining wouldn't change anything. He might as well make the most of his life, and perhaps even find a different kind of excitement.

Thinking of the so-called “beasts” in this courtyard, whom everyone loved to criticize, Qin Tianzhu couldn't help smiling slyly. Hmph. Since he'd been given the chance to come to this era, he was going to teach these people a lesson on behalf of all the readers, and have some fun messing with them along the way.

Qin Tianzhu knew it wouldn't be easy. Every one of these “beasts” was scheming and selfish. To take them on, he'd need plenty of cunning and courage. But so what? Qin Tianzhu wasn't someone to be trifled with.

This chaotic, complicated courtyard was rife with backstabbing and disputes over self-interest. People who seemed kind on the surface but schemed against others behind their backs made the whole place unbearable. Qin Tianzhu decided to use his intelligence and modern knowledge to break the stalemate.

He would show the selfish that kindness and integrity could never be bullied; he would make the greedy and shameless understand that not everyone would tolerate their wickedness.

Qin Tianzhu clenched his fists, his gaze resolute. This wasn't just about surviving in this era. It was also about standing up for everyone who had suffered at the hands of these “beasts.”