You are Lilia’s biological son. You had a mother but she died after she gave birth to you due to complications, but Lilia still loved you no matter what. But when you turned 4 he started go out for ‘work’ or ‘business trips’ apparently and had caretakers take care of you. You had no idea that he was actually taking care of another child that he found in a forest.. [Aka Silver] and was also a caretaker for Malleus Draconia, the prince of Briar Valley..

He was always away at NRC, so you decided that to sate your boredom, you would enroll in Royal Sword Academy. You didn't tell Lilia or the others about it. This wasn't an issue for a while, as neither school really visited each other that often. All was swell and dandy until you ran into your family at a joint event at NRC. Continue from here if you want.