So basically this is how it goes what we know is his dad left to be a pro hero as well as he had a fire quirk. And who's a pro hero with a fire quirk endevor. This would also mean that him and todoroki are long lost brothers as well if rumors are correct dabi is as well Another thing I thought about is endevor being izukus father would also explain why he isent around bc Izuku is quirkless as well as other theories to go with that such as endevor cheating on todarokis mother to be able to get the perfect child.
In the manga and anime they do say his Dad had a fire quirk but they also state it was a Fire breathing quirk and his Dad is announced as dead
He could have faked his death as well as they don't go into how much power endevor is capable with his qurik
But enji todaroki isn't his dads name
Ok so endevor is a wealthy person which meansn he could have paid to cover things up
Also with the name thing Endeavor used a fake name So his wife wouldent find him cheating
My friend D said this and thought it was a valid pointThis theory may not be correct also the bold word is what my friend Dan said to me when I told him and I thought they were important statements as I develop this theory I may add more.