She Was Pierced by Ten Thousand Arrows in Her Past Life, and After Being Reborn, She Went on a Killing Spree

It can be said that the male protagonist was raised by the female protagonist as a younger brother. How can a normal person have other thoughts about a person who has been called sister for several years? Although there is no blood relationship, the setting is that they are siblings. The female protagonist has always regarded the male protagonist as a younger brother. Doesn't the male protagonist only care about the female protagonist's good looks? As long as there is a man next to the female protagonist, the male protagonist will act like a resentful woman with a small belly. After watching it for a long time, I felt that the female protagonist raised the male protagonist like a pet. As for the male protagonist, he doesn't know how much he weighs and always wants to be on top.