It's all about Arien, Arjen/Arhen doesn't get too much 'screen time' 
MC's are mentally adults but they're pushovers and make very stupid decisions
Author forgets about their trauma
ML for Arien is the biggest disappointment, and it's little disgusting for me
Arjen/Arhen don't have any love interests (it's nothing bad but because of that he didn't get a lot of story in extra stories)
When twins grow up it's much more about Arien because of Jason and 2nd potential ml. Arjen look like support there.
Pretty disappointing about the unbalanced story between 2 main characters

In next chapters it's similiar. They don't have trauma until it's needed.

It's all about Arien, it doesn't stand out when they're kids, but when they grow up it's too visible. I'm reading this second time because I like the beginning, and I see that Arien is favorite for the author. The title Twin siblings new life doesn't fit. Arjen/Arhen doesn't get too much alone 'screen time' when he does, then Arien shines again. It's not balanced between to twins when it should since it's their story not Ariens