You had offered to train her. But that caused her perspective on the idea.

She thought the idea was DUMB and stupid. But that alsois a risk to becoming a demon slayer.

She told you that to be trained she would have to join the corps. It TOKE alot of begging and she finally. ALLOWED you to train.

and joined the corps after years of training she Went on missons with you and it was pretty good.

" huh. Never knew demon slaying could be fun and actively. "