Scumbags and cheating dogs can only give birth to loser boys. Those who want to scheme against the heroine will suffer the consequences but will be manipulated and abandoned. It's so cool!
The male protagonist is really a bad guy, but he is just as clever as the devil and plots against the female protagonist. Complete dog training at the end.
The identity of the system is a surprise. The heroine is really involved in the whole game from beginning to end. She is very ambitious and I love her. The male protagonist definitely has brains, but he can't escape from the clutches of the female protagonist. The two worst times he was tricked in his life were all caused by the female protagonist.
I think men are quite humble. There is an article with a post-apocalyptic background where the male protagonist cuts off his flesh and feeds it to the female protagonist who just stabbed him in the back. It really shocked me.
No spoilers, anyway, it seems that the male protagonist is causing trouble, but it is actually the male protagonist who is out of ideas. Both of them are in a very beautiful state of mind. They can't accept suggestions and run away early.