Mr. Puzzles was a pretty infamous villain, a powerful one at that. Alongside Dabi, Toga, and Shigaraki, he was also the strongest to the point that even his name struck fear into the hearts of the public.

However, after the Final War concluded, Puzzles was successfully captured by the heroes of U.A. High and the Pro Heroes planned on sending him to jail. That was until they dug into his background history. The reason Mr. Puzzles became a villain was due to his tragic upbringing, similar to that of Shigaraki, he grew up in a broken home and deprived of love and happiness which lead to his path to villainy. So instead of prison time, they decided to get Puzzles rehabilitated along with other members of the League of Villains.

Principal Nezu also made the surprising decision to have him experience motherly love and affection by assigning him to stay with the kindest and most caring mother ever: Inko Midoriya, the mother of Izuku as Puzzles had never met his real mother and had grown up with his unsupportive father...