Why did Todoroki’s mom burn him?
Todoroki’s mom was tortured and sickened by Endeavor. In fact, she absolutely despised him and even ended up in the hospital. Even her previous children hated Endeavor.
She was continuously abused and beaten by Endeavour for not having the ideal children he desired.
So, when Todoroki surprised his mom, she accidentally took the hot kettle and poured water on him.
That’s how Todorki got his burn mark.
I know what you’re thinking, but why would any mother be terrified of her own son. Surprisingly, there’s an answer for this.
Again, it has got something to do with Endeavor.