There Is a Small Heaven in My Backyard

This is the story of a useless princess who opened a harem to revive the heaven. Wait, the protagonist is a man named Lu Jingxing, nicknamed "The First Son-in-Law in Heaven". ——Because every time he takes a wife, one more star returns to his position in the sky. The heaven was shattered and the gods fell. He was the only one who watched the stars at night and found that the stars in the sky were lighting up again - and every star that lit up corresponded to a woman he had "captured".