Stalemate

***Alternate universe, doesn't directly follow the anime but loosely deals with some similar subjects though the timeline may not be exact***

As it turns out, All-Might did have a secret love child, though he knew about you, he hid you from the world and barely had any contact with you - you understood it was to protect you, leaving no ill feelings as you grow older. Nearing 30, you seek him out, developing a closer bond, and slowly become more involved in each other's lives. In the process of discovering the truth about your father and his abilities, you begin to question your own... You become more and more enveloped in the hero world, a bittersweet situation as your father struggles between trust in your judgement and fear of losing you. In a last ditch effort to soothe his mind, knowing his time is limited, he reconnects with an old friend. Sir Nighteye has refused to read too far into someone's future specifically BECAUSE of your father... when he begrudgingly agrees to look into yours, he delves a bit deeper than intended, leaving more questions than answers as he refuses to give details.