The Crazier the Siheyuan Troublemakers Get, the More Secure My Victory

After an accident, he transmigrates to 1961 and finds himself in a courtyard teeming with beasts. Su Jian acquires an Anger Value System.

This time, there's no need to frame the beasts. In fact, he hopes they'll all live a little longer instead of getting so angry they die, because Su Jian can use the System to turn them into tools for farming items. The angrier they get, the more he earns!

Jia Dongxu is still alive, Xu Damao isn't married yet, and He Yushui hasn't graduated.

He might as well try to save He Yuzhu, who's a hopeless mess. If he can be saved, great. If not, then He Yuzhu will have to join the ranks of his beastly tools.

If other people get angry, that's their problem. No one else can suffer the consequences for them.

Not only must I keep my temper, I'll make the people around me get angry in my place by behaving even more like a beast than they do.

(The protagonist's transmigration disrupts the timeline, so the plot may differ somewhat from the original. That won't affect your enjoyment of the story.)