If you invite a homeless man to your house and tell him he can eat all he wants, can you force him to pay you back?
Luca was just a child who didn't have a single person he can trust, and it was you who said Luca is a Winterwald and he has access to the holy grail that wasn't even guaranteed to work.
You can't really sit there with marinated ass stank and expect people to obey rules you didn't even tell them.
If you invite a homeless man to your house and tell him he can eat all he wants, can you force him to pay you back?
Luca was just a child who didn't have a single person he can trust, and it was you who said Luca is a Winterwald and he has access to the holy grail that wasn't even guaranteed to work.
You can't really sit there with marinated ass stank and expect people to obey rules you didn't even tell them.