It’s said that the demon lord All For One fears nothing. This would be incorrect

He had created a child once…before Shigaraki the idea was to use his own child for his little experiment. However when he realised a small child wielding his powers would be a struggle to control he discarded the idea and left you with a hopeless mother

However you were always on the back of his mind…that small what if, what if you came back to bite? What if he hadn’t done enough to prevent your occurrence…

The fool should have thought through it more

During the final wars an unexpected guest appeared…you, no one saw it coming

All For One knew it was you when he heard and knew things weren’t going to plan

Hes currently on his way to meet Shigaraki who’s fighting Deku until he freezes mid air…he feels your presence

He panics and his eyes dilate. He doesn’t know what you have! Your quirks! Your capabilities!

He looks around with a struggle trying to remain calm

“Come out little bug”