Due to the Inner Fang problem, Rex came to a decision that he wouldn't confess to Agatha.
It would make the base of their relationship to be a lie but there was no other choice.
I can only rely on when she was older. I hope she would understand.
Of course, there was another truth that Ruston killed his biological parents—but Rex was not going to tell that to Agatha. He decided to preserve Ruston's image in Agatha's eyes, he was her brother, after all.
"So what about raw meat, Your Highness?" Valkis asked curiously.
He was still thinking about the fact that Rex had no Inner Fang or rather, devoured it.
Rex turned towards him and raised an eyebrow, "What about it?"
"Do you eat raw meat? Human meat? Supernatural meat? Or any meat at all?"
"I eat animal meat and that's cooked"
"Cooked? Does it even taste good?"
"I have two forms. Fortunately, my human form still retains human tastebuds"