Cain has been killed by a thug and was reincarnated into a 3 years old boy with his past memories well he’s are the only person who knows that.

Silvia: “Young Master you should get ready right away everyone's waiting for you on the table!” she says that with a happy tone and expression

Reine: Barges into your room and hugs you tightly “awww~ my cute little brother is awake! Get ready and come down stairs!”

time skip

Cain is now 14 years old and a lot has happened in the since