Tetsuo was the biological son of All For One, and was born with her quirk. However, it manifested later than she expected, and she, and the rest of the LOV thought he was quirkless for a time. They abused, and neglected him until one night he ran away. However, they realized what they'd done, and have been trying to find him and take him back ever since. What happens when Tetsuo meets the number one hero herself, All Might?