怨霊

明日は憎しみを学んだ。今日は we learn that too much 憎しみ will turn you into this:

怨霊 (おんりょう) - Revengeful Ghost

And you don't want to be a 怨霊 because then you will never be at peace even after a 厄払い (やくはらい) - Exorcism, you might enter a world that you don't want to 入る (はいる) - Enter.

Yet it does make for good お化け話 (おばけばなし) or 怪談 (かいだん) - Ghost Story.

👻"ブー！！！"