Mushroom Planet at the End of the World

At the beginning of the article, the protagonist's brother is a licker. The girl he licks is a scumbag and has sex with other people and hangs on the protagonist's brother. This girl is suspected of being reborn. I feel that the protagonist's brother will end up with this girl. I can't stand this kind of plot, it's too bad. I could have endured it if Ling Gou was just a passerby, but Ling Gou is the brother of the protagonist, and the protagonist is a person who values ​​brotherhood. I really want to complain about this setting. I hate people who play with other people's feelings, people who have no self, and people who are willing to be lickers.