Guess this fictional character's MBTI type and Enneagram

[Marllon]

The character is Louis. My guess is that he's some sort of an NT. My primary guess is that he's an INTP. I could also him maybe being an INTJ or ISTJ. Typing is not my forte, so I wanted to get others' observational analysis on this. Please, vote your best guess on the poll!

I quickly skimmed and screenshot some pages. I highlighted the parts I found the most telling of Louis's personality in the following images:

 

[Marllon]

After thinking about it some more, I can't see Louis as an INTP. I'm going to go with either ENFJ 1w2 or ISTJ.

 

[Marllon]

I change my mind again. Louis is an INTP so-dom.

 

[Marllon]

I was hoping to get validation or an alternative perspective on Louis's cognitive function stacks from the following screenshots (feel free to enlarge):

I was thinking this must be irrefutable proof of extraverted intuition.

I mean, the whole nature of anthropomorphizing and imagining a pretend conversation between rats in the streets I would imagine as exclusively a result of a high Ne. Unless if I'm wrong, then please do interject.

In the following, Louis has a mutiny of the mind, a metaphor I think the author used to describe what I perceive as most likely being Louis's self-doubt. Would this be an example of Ti? Or could it be a result of Fi manifesting through a phobic 6w5 core maybe?

In the last pages, Louis discusses how he wants to grab a book on Mars to learn about the planet, which I found very 5-ish. Could this be an example of Ti in Louis's case? Considering Louis is probably not applying the data he is collecting about Mars. Also, in the last line he admits to crave attention, yet he never asks or outwardly hints at it throughout the book, which makes me think it might be inferior Fe wanting to be listened to, maybe?

Any thoughts?