I Really Like Being a Villain

Boy, how do you want to play in this world? "I don't know. I've killed the protagonists of sixteen worlds. It's so boring!" How about I give you an idea? "What's the idea?" You do this... And then do this again... "Tsk tsk tsk, it's fun. I like doing it, but I just don't know if the protagonist of this world can bear it." Haha, you are a villain, do you still care about this? "That's right, then let's have fun in this world!" This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.