Honestly, this is going to be an extremely sad short story. Why this came to mind I don't even know..
All for One is Izuku's dad and he knew that from a small age. Izuku had always wanted to be a hero but never looked up too All Might like in Canon. He knew what All Might did to his dad and he held a grudge. He took his dad away from him and his adopted brother Tomura for 3 years. Tomura was adopted my Hisashi and Inko almost a year after Izuku was born. Izuku always Said Tomura is his big brother blood or not.
When the Kamino fight takes a different route. All Might brutally murdered All for One in front of all of Japan, as Izuku and Tomura were there standing in shock. Before All for One died Izuku ran to him using every healing quirk he could... but he couldn't save him.Hak Cipta Dilindungi Undang-Undang