Review Detail of CainIsSleepy in I am a Scarecrow and the Demon Lord of Terror!

A fast-paced story, I've enjoyed it till now. MC is cold-blooded and evil, not like those mc who try to act like they are evil. He kills anyone regardless of powerful or weak and innocent or evil, for his gain and fun, yes fun. Although the levelling of skills in the system is a bit confusing, everything else is fine.