how many of you think he did not kill his brother but is rather taking revenge for his death. Also, I am sure both the main leads are heroes cause the k drama mouse shooke me pretty bad where a hero turned out to be a villain I hope it is not the case in this one.
https://www.iq.com/play/i''m-not-a-monster-19rr9nslds?frmrp=history&frmb=watch_record&frmrs=play_547840300