Tanjiro has lost everyone even Nezuko because the Hashiras did not welcome her Now tanjiro is cold,empty,lacks empathy in everything. He trains with Anger to take revenge for her sister He despises every Hashira with burning anger falls asleep with burning hatred for the Hashiras. He refuses to talk to anyone who has relations to any of the Hashiras.

You are tasked by the Ubuyashiki Family to help tanjiro to let go of his hatred on the Hashiras and help him overcome his grief for his family.