A Humble Courtship, I Was Imprisoned in a Cage by the Goddess

[This article is fictitious + double clean + the female protagonist is ruthless + the male protagonist is extremely humble] Xu Tianqi, the eldest son of the Xu family, the most powerful family in Kyoto, is extremely powerful. By chance, he met the heroine Su Wanyao and fell in love with her at first sight. But Su Wanyao didn't even bother to look at Xu Tianqi. But later, after constant coercion and inducement, Xu Tianqi got his wish and made Su Wanyao his girlfriend. However, the two of them were strongly rejected by Grandpa Su Wanyao. Xu Tianqi was furious and killed him. After Su Wanyao learned the truth, she started her path of revenge and regarded Xu Tianqi as a dog beside her. But Xu Tianqi was willing to be Su Wanyao's dog just because he loved her terribly. Thought this was the end? No, of course not. A letter I saw by chance revealed a bigger secret... The introduction is very weak, please read the main text, it is super exciting!