
I looked up how much 3 million ₩ are and it’s not even 2 000€. I get that this is not an insignificant amount of money. But aren’t the Seo brothers supposed to be crazy rich? If paying 2k hurts you like that, were you even rich in the first place?

Sure but it’s not like it’s indicated that he currently struggling with money and with his lifestyle only having 3m ₩ in the bank is basically nothing.
Also where did he get his money from before? He‘s almost 30. I didn’t think his wealth came from his child acting days. I assumed their parents gave him money and this is an amount his allowance should cover. But even if they don’t and it was money from his childhood, then he should have no problem doing a couple gigs that pay well, instead of getting a random part time job or going to a loan shark!?

I'm assuming that he's being given allowance by his parents since ML mentioned that his younger brother is spoiled and very loved, so he doesn't worry if he has so little money on his account because he can always run to his parents. But since the issue blew up, ig ML pulled strings so he can't ask money from their parents anymore. And yeah he can work but chose not to.
He's just a stupid bum. (〜 ̄△ ̄)〜

They always act like taking off your glasses makes you basically blind

I need glasses as well. However even if my vision is blurry, I can basically still make out the general shape and colour of somthing, especially if it's right in front of me. But in some mangas they make it look like the character wearing the glasses can't see AT ALL without them. Example: they constantly bump into things or need guidance even in familiar places. I mean glasses "only" sharpen your eye sight but they can't create vision.

True, I only bump into stuff in the dark (my night vision is horrible) even with my glasses on. I have never been in public or on a street with my glasses off. So I dunno how realistic it is to bump into things or need guidance there. I imagine I may bump into people though (because of the blur and my depth perception). Indeed, I think those manga exaggerate because it is a chance for bonding if one character is guiding another. I think moments when the character says they can't see their partner well during sex or something is realistic though. Like in this manga, I wouldn't be able to see his nipple unless it was 4 inches from my face. It'd just be a fuzzy blur of darker color otherwise. (They did mention his nipple right? I can't remember...)

Last time my glasses broke to the point that they were ruined I had to have some one lead me around by my hand. My depth perception was completely non existent and I could not judge were the curb was nor see any obstruction in my path. Without my glasses I can see about a hand span away without it being blurry. A few feet away and it becomes light and shadows and vague colored shapes.

I would have appreciated a warning (¬_¬)
I know a lot of you love incest/ twincest, but please respects that there are people who don't like it.

Erm, no one has insulted anyone who didn't like incest/twincest in the comment section. Only calm opinion sharing, that's all.
Unless you're considering that thumbs down are a sign of disrespect? In that case, sorry but that's not disrespect towards the ones who don't like twincest, it's only a disagreement with their comment.
As for the "warning" you would have appreciated, who did you want it from? The author themselves? The scanlator? The fanbase? (For the latter, scrolling the comments before reading would have been the biggest and best warning).

I would appreciate it better if they put a warning at Summary.
Such as "chapter 3 about twincest"

The fact that I and others get massively down voted just because we don't like incest/twincest, shows how hostile people are towards others who don't share their opinion.
There are certain things I don't like to read and I would appreciate it if the scanlators (as a card before the manga) or the person who uploads it here (as one sentence in the description) would give me a heads up. I don't like to read the comments before reading a chapter, as they usually spoil too much. I typically read the tags to get a general idea, but as only the third chapter contained twincest, I was too early for them to change.

no disrespect...but by the 2nd page I knew the 3rd chapter was going to be twincest. Without reading comments or seeing a tag or having a note from the scanlators. Some manga come as a surprise, but this one was obvious from the getgo. There are certain types I don't like to read...and if I start reading one and realize that it's going in that direction, I'll stop reading it.
And sorry you feel people are being hostile to you by them downvoting you. But I honestly don't think anyone was trying to disrespect you or any others who don't like to read this type of yaoi.

This picture described the relationship of my ex and me perfectly:
http://www.mangago.zone/read-manga/otona_keikenchi_dj_boku_ni_dake_ijiwaru/uu/otona_keikenchi_dj_boku_ni_dake_ijiwaru-chapter-1/5/
I feel you Mu ( T_T)\(^-^ )
WHY WOULD HE PICK UP HIS PHONE??!!