After the Protagonist Turns Dark

My name is Wan Tejia, and I have just entered a fantasy novel that I just finished reading yesterday. Fortunately, what I am reading is a traditional upgrading novel. The grassroots male protagonist upgrades to an immortal through struggle and marries one, two, three, four, five, five wives. For safety reasons, I decided to become the hero's little brother and live under his protection. What's puzzling is that I'm also bound to the "whitewashing system." What's going on, am I required to whitewash a stupid and cruel villain? I first met the protagonist's eldest wife: [Beep, the darkening value is 30] I met the protagonist's younger brother No. 1 Again: [Beep, the blackening value is 70] Finally, I met the gloomy protagonist who looked strange everywhere; [Beep, the darkening value is 100] Oh, the novel I am wearing is a darkened version! Purpose: Whitewash and darken the protagonist