The way Masato flirts(idk if flirts fits here but whatever) with iku and the way Naru flir...

I see it differently. For me, it's one of the aspects of the story I adore, because it shows that their friendship is rooted in trust, that it is a very deep and special friendship. Neither Asahi nor Yusuke feel threatened with the flirting because they know it's joking around to get a rise out of them. They get annoyed but not threatened. That's what trust looks like, trust in their partner and trust in their friend, as it should be. That's what true friendship is. I have that in my personal life and have witnessed it with others. I understand it may not be the case for everyone, especially because it can also be a cultural thing, because that type of comfort requires a certain level of trust, maturity and sophistication.

Ok but you do realize Naru kissed Masato at one point...

And i get it it's not serious stuff but it still feels weird. Naru is just totally flirting with Masato(and i cant take it lightly since the kiss scene). And Masato had a thing for Iku so it's weird as well.

It's like if you have a boyfriend and he flirts with a friend of his(girl). Oh and btw he bad a crush on her some months ago. BUT DONT WORRY, its only to annoy her current boyfriend that he flirts with her. I know what Masato is very little and it's not a big deal at all (Naru's kiss was really more triggering) but it still feels wrong to me.

As you said, it's a difference in culture, completely. But i believe most people would agree with me and that's why i feel like this is unatural.

Nah it's just straight up weird. Also its not that deep lmao

Kissing your friend while in a relationship with someone else is wrong, not 'cute' or 'sophisticated' or 'mature' lmao

I'm with you(▰˘◡˘▰)

That was before when the couples were being immature and kept dodging the truth and their feelings. Now they have matured and have now built trust.

And still flirt with eachother? Ok

There's actually thematic depth in this story. I wouldn't say this transcends the genre, but it's not the typical yaoi fluff either. Themes of childhood trauma, emotional trauma, betrayal, coming out, difficulty with emotional commitment, friendship, strong support systems and all the nuances they entail are all explored here which makes this story rich and complex. You are wrong in thinking there's no profundity to find here. Your inability to recognize this is definitely your loss.

Your lack of understanding about something does not define that something. If humanity understood that fundamental truth, we wouldn't have to deal with so much destructive prejudices.

It is ok if you don't feel comfortable with something for you not to do it, but that doesn't mean others are wrong if they, unlike you, feel comfortable doing something. The lesson to take from here is that being judgemental is never ok. Just because we don't agree with something, or something is not culturally familiar to us does not make that something wrong; it just makes it different. Also, saying your position has merit because most people would agree with you is a flawed argument. For example, someone can say that homosexuality is wrong and that their opinion is valid because most people would agree with them, which is correct in that most human beings are homophobic, but anyone with an ethical conscience understands that that is fundamentally wrong. Eventhough the majority of humans agree that homosexuality is wrong, in this case, the majority is wrong.

Same here

I kind of do the same with my friends? I "flirt" shamelessly with them, but it's a purely platonic thing, I'd never broke their relationship or do it in an uncomfortable way

What's exactly wrong with flirting?! All the parties are well aware they are just teasing each other, for fun. They are now all secured with their respective partners. They have all moved on with their issues with each other because they are now more open with their feelings. I don't know if your perspective is coming from being conservative, naive or insecure (if you see yourself in the characters' shoes) but the dynamic of the characters' friendship is that they like to tease each other. They have grown from taking such banters seriously and be seriously jealous and threatened.
Plus, Ikuo (?) and Asahi, the ones teased the most, have great relationships with Masato and Naru. They are reliable friends/confidant that the former trust them a lot.

Aşağı doesn't like it, and they know that, and they still do it

Aşağı

Asahi*

Proof? If he truly doesn't like it and cannot tolerate it, he would've already hit Naru or Masato, broken or fucked all his relations with Naru (including their business related stuff) or broken off with Masato. And even if he was painstakingly enduring all of it, Asahi and Masato's relationship will never be as lovey dovey as they are right now. And they would never have been with Masato's mother. Asahi's issues are relating to his family and self-worth, not with Masato and Naru.

I wasn't saying that because (i believe) other agrees with me, means im right. I said that i believe most people would believe that the way Masato/Naru act is not something they'd do. And because i feel the general opinion agree, it looks like an unnatural acts.

For example, if its a fact that 99.9% of Japan's population is homophobic, then it feels weird if in a manga, the whole highschool where the story takes place, are people accepting of it. IT IS POSSIBLE, IT IS NOT WRONG, but it's weird

I might have made a type or maybe you misunderstood me, but i meant to say that it feels wrong FOR ME to way Masato and Naru acts. As in, if i did that i would feel like i did something wrong. But i dont classify it as something wrong for others. BUT i think it is weird that they dont think the same. Because i believe my way thinking about this is pretty much the same for most cultures.

He truly doesn't like it, but not enough to break off his years of friendship with Mary, obviously

Naru*