i just watched that too! but I can't find it anymore
Can't find it here but the name is "Asura's Verdict"
https://mangadex.org/title/dd96061a-96ac-4549-8a3c-ed4221a51d46/asura-s-verdict
My reply was deleted but the name is "Asura's Verdict"
Thank you so much! I was searching 'asura' here the whole time and thought I remembered wrong, turns out it's just not available here in mngago
I watched a tiktok showcasing this manga. In the particular chapter I saw, the main character (boy with black hair) has a key. He used it to save his friend who was being domestically abused by his father. Unfortunately, the MC was unable to successfully twist the key after stabbing it to the father's forehead and the chapter ended there
Would appreciate your help with this. Thank you!