$ex between cousins is out-lawed , so the cute cousin cant join the MC 's harem , so the mangaka has to kill her off , so sad . later , the mangaka regrets her decision of killing the cousin .
That's it ? Just gonna shrug it off ? This MC really doesn't give a shit what happens to other people, given that he knows of the damage these ghosts could inflict. There really is not point in having an MC in such a series if there's never gonna be any emotional attachment to him or the people he leaves to die.