wait is the blonde a new character or smth who r they i forgot like half the book 😭

no its an old character from past live. as i remember, his name started with viscount. he was killed by the crown prince in past

He was Erin's friend, he trained under her aunt, he was the one that lead her to researching magic book and circles and the one that made both of them (Erin's aunt and Erin) met. He was also acquintances of the Crown Prince fiancee