
I don’t think it’s right to blame the author for it’s inconsistency because at the very beginning when groo awakened, the system told groo they modified her intelligence/mind to an older age for the sake of her survival as an s ranker who is still too young in an adult centric hunter’s world. The comic does update quite slow so you probably forgot since it’s been a while (๑•ㅁ•๑)?

For me I interpreted the system brain modification not in IQ but more so in maturity and street smarts.
For example, the mentality is more important for survival because if you don’t have the right mentality, then all the high IQ knowledge can’t be properly used once your brain is in a constant panic. Another example I can think of is if someone is depressed, no matter how smart they are, they continue to dig a deeper hole because their head is just not in the “right space” of mind.
If it was just your average kindergarten kid having to face with what groo went through, they’d probably shit their pants. But groo didn’t panic and she faced her obstacles because the system gave her the right mentality to be able to survive anything that gets in her way even if she lacks IQ and is just a small guy. As a kid, the system taught Groo that to survive she needs a guardian, so even if her IQ isn’t high, if she follows the system’s instructions properly, her chances of survival is higher.

Hi sorry for the late reply but yeah i forgot abt the system modifying gru's mindset but i still think that the inconsistency in her intelligence is a problem for me to enjoy the story.
From what Im able to recall from the story, gru is able to read documents of the tragic past event that happened to the guy who took her to rhe dungeon (iirc it was like ch20-23??idk) but in the latest chapter 34 she cant even recognise the word schedule. This is just an example that doesnt make sense to me. I think children have an easier time to recognise hearing words than reading. Like babies learn to hear and speak before reading . So i dont really get how she can read so well but she fails to understand what people are saying.
idk this doesnt really make sense imo

Honestly ur interpretation does make sense and i do agree with it except the part on gru's maturity, i think shes still quite naive.
Imo n the scene where gru isnt scared of the monster (??) is because she is confident in her abilities which made her not afraid of it. I think this is just an example of how the system helped her. But when it comes to actual people, she was still afraid of the ppl who were stealing items in the theme park despite probably being able to beat them. This made me quite confused when i was reading it because that monster was definitely more threatenting than that theme park robber.
I agree that the average kindergarten kid wouldnt be able to do what gru did. But the system modification IS SO VAGUE. I can accept that gru is street smart and has high cognitive development with execellent language skills because wowowow fantasy! but the main problem i have is that her language and literacy development has been very inconsistent. Sometimes I feel that her inner thoughts have many words that an average 4 year old child would not know (i cant think of examples rn).

I get that. Many ppl have reiterated that to me in the comments but what you guys failed to understand is the inconsistency. Her brain is already modified in chapter 1 but in chapter 2 or 3, she was asked to read and she wasn’t able to. In fact, she can only recognize 1 letter. However, few chapters later and she suddenly can read perfectly? So does this mean that the system gives her buffs every now and then without asking for anything? This is also fine because it seems that a higher entity is messing with the system to help Gru but if as you say the system teaches or helps Gru for her survival, why didn’t it deemed that Gru needed to know how to read in chapter 2/3? It was a situation where reading is needed for her to obtain a guardian.
It’s simple, really. She wasn’t able to read in the first few chapters because it’s necessary for the plot so that her adoption arc can be dragged on. And she can suddenly read now because it’s necessary for the plot for her to know that her guardian actually cares. That’s simply how it is, bad writing but it’s okay because it’s still enjoyable.
Love the concept but i hate how gru does not act like a 4 year old. i dont think a 4 year old child would be able to read documents and use big phrases yet?? At 1st i was like okay what if shes just a gift 4 year old. But right now im so confused because sometimes she act like a 4 year old but sometimes her language capabilities and thought process isnt like a 4 year old??? I dont think this author can write children like children. (︶︿︶)
But im enjoying the guild master's dynamic with gru right now. But im not sure if i would continue reading this because of gru's inconsistent writing.