I can't help but feel bad for her she never had a proper childhood in both lives she lived
Sorry for the long post but,
Honestly, Imho, if u only read up to chapter three then you are kind of... too early to judge?
The MC girl is indeed the quirky and adorable type of girl but she is not useless and shallow, she has skills, she is not an idiot naive girl as she can stands for herself. I read this to the latest chapter and I don't think her character is shallow and immature at all.
She has skill, she communicates with others quite well, and handles her problems herself (as long as she can handle it). However i can indeed see how she could be viewed as childish because of her bubbly and bright personality, which I personally viewed as cute and fun.
(Oh actually imho, not every single person needed to be the serious and calm type even as an adult. I have many friends that are very bubbly, quirky, and adorable like the MC in their late 20s, and that's fine. They are doing well in their life and is well liked by many. As they are fun and comfortable to be with. Being well liked is a talent too right? Social skills.)
Oh, and In the first place I don't think this manhwa is supposed to be the overly serious type, its more of a comedic and light hearted one. So maybe if you read this till the end and still don't like this manhwa, then this is just not your cup of tea? not necessarily means that this is shallow and immature.
I can't stand reading this. I'm only on chapter three but the FL is so shallow and so childish. For someone who is supposedly an adult from her past life who lead a "normal" life her character is a try hard "quirky and lovable" girl... making no sense because of who she supposedly was. The plot feels like it was written by a 13 year old. Will stop reading this for now but maybe I will come back and continue when I am really desperate.