
Actually, this is partially based on facts. Unless you know about Japanese history, you wouldn't know, most likely. But homoerotic fantasies - and activities! - were a huge thing in male dominated Japan of the past. Pretty much until WW2. Students at universities would fight over new arrivals and court them like ladies. The prude norms of Europe and the puritan's mindset of the US brought an abrupt end to anything gay related in Japanese society, though.

Where are the other two volumes?! This is a four volume story. Raws anyone?

https://v9.yaoi-chan.me/manga/103539-takane-no-hana-wa-chirasaretai.html
This has volume 3. I used to have the site for the rest of the rows but I can’t for the life of me find it

The narcissistic mother, narcissistic father, narcissistic golden boy and... *drum roll*... the black sheep. And in the story, the partner unfortunately also is a golden boy. It's a secret dream for lots of victims to see their narcissistic family change and love or at least accept them. But in real life that basically never happens. Whether it's a partner or a family member - narcissistic personality disorders are very difficult to treat, because narcissists cannot see any fault within themselves and close to never seek help. It's better to leave a narcissist behind, for self protection. If somebody is able to change, they weren't really a narcissist to begin with. A sad reality.
Why is everyone and their mother calling this "pedo"? That's a high schooler. Probably 17 or 18. In what universe is that pedo? Ah, I get it, in the US everyone and everything is pedo under 21, huh? But not in the rest of the world. Shotacon or Lolicon, yeah, that's ugly pedo stuff. But this? Yes, there's a power imbalance here, I get it, but that doesn't make it "pedo". ┑( ̄Д  ̄)┍
It doesn’t make him a pedophile but it does make him an ephebophilia (an attraction to adolescents/teenagers) and yes it’s weird asf for a grown ass man to be preying on a teenager who isn’t even in college yet. This story would’ve been so much better if the author aged him up to make him in college or 19-21 that would’ve been way more appropriate/legal and would’ve made a lot more sense too story wise (AKA him havin a credit card? But no job is mentioned, plus he juts lives alone and there’s no parents in sight) and just cause you found a way to justify this in your mind and make up excuses doesn’t make it not a crime and if you truly think this way in irl you needa be put on a watchlist I enjoy dark romance and black flags as much as the next person but even I can say there’s just no need for minors to be involved in any of these authors twisted fantasies.
Kid, this is normal in Europe. If you're 18 you can marry anyone you like and nobody will bat an eye.
Oh baby ur so weird, would never allow children to be near you