She's so reckless and she's one of the few characters I don't get angry at her for acting dumb (her trauma after all caused a big regression on her), but tbh I can't ignore that she already has two lives on her. I'm not asking her to be the most cunning person ever, but can't she have at least a bit of common sense and realize that nor her body or mind can survive alone and whatever she does can kill her? (Not to be dramatic, just so she can learn how to take care of herself)
Also, hello? Her papa was in a state where he was forced to fight against everything and everyone since birth, she's extremely lucky and yet it seems has she not realized that this is a different world full of monsters, creatures, demons, etc. etc. Just the basics, dudes (or what, does reborn made her brain to actually work like her current age and her past life had zero purposes aside from hurting her? Bruh, I can't believe in such thing).
Anyway, I hope she can mature in the future, snap out of her shell, and become smarter! Also, why is she not super strong if her parents are so iconic and powerful?
She's so dependant till the point that every time there's no one around her she ends up putting her life at risk. I've never felt such extreme infantilization in any main character before, it's almost as if her past life was just a bad moment, but she didn't actually learn anything, c'mon. There's a reason why I got way more excited for the parents' love story than Irene's (even tho she's the MC).
Edit: Btw, so is it the red dragon really the ML? :0