A drunken Bond and the reemergence of Ancient Foes

Before quirks there were powers that made legends, and foes greater than any human can think of. Now in the modern world where quirks are a given. These powers are once more needed, but their wielder finds himself in a rather interesting situation. After the provisional hero license exam, Izuku and class have a fun night out at a bar. But in the morning, Izuku wakes up without a single memory of the night before. He finds himself in a hotel room, naked as the day he was born. And soon he will become the bearer of even greater power than his inherited quirk. What's this? Looks like he isn't alone in the hotel room. A certain girl is with him and she also is naked as the day she was born, but unknown to Izuku she bears an interesting past.