The Days of Fighting for Women with the Scumbag Male Protagonist

"I know you have liked me for a long time, and I like you too. Let's be together." "What? Sorry, I'm chasing your girlfriend/wife/target." [This is probably the story. The scumbag author doesn't know how to write copy, so everyone can understand it] The first world: Scumbag Bai Yueguang x Scumbag's wife The second world: One of the scumbag's harem x the squeamish young lady The third world: big sister x kind little white flower Purpose: Orange is the most important thing