Superhero Kindergarten [Western Crossover]

Carlyle received a castle key in a letter from his maternal grandmother. Just as he thought he was about to get rich overnight, he discovered something extraordinary. Every night, a child would emerge from a mysterious room in the castle. They were all very young, but each of them was extraordinary, and they looked a lot like the younger versions of some big shots Carlyle had seen on TV. For example, two famous playboys, a cute little detective clutching a book, and some youngsters with special abilities. From then on, Carlyle's castle was successfully transformed into a temporary daycare. Reader's guide: 1. A slice-of-life story with no CP. 2. The characters are seriously out of character.