
Is it that bad (aka pedo)? Not really. Until an adult makes a move to a minor, it's not. Was the adult even subtly seducing or hinting of making a move on a minor? Not really. If a minor grew up and made a move to their elder - that's on them because the elder did not make a move the whole time. Stop pillorying attractive people for being older.
I have worked in crisis center in my previous work life and I have seen true pedos.
Besides, there are really really bad yaoi here that should be pilloried. Leave this one alone.

Given that this is an AU with people that had an animal characteristics, it must have meant that he was a mutant from that animal that children likes snuggling with.
Also there are just these people aside from family that children are comfortable being with, and at natsuki's age that time, they like hugs a lot, especially when they're close to heart, which is the chest area. Why would that be? Because their mom's heart beat calms them, a kind person with motherly feel also calms them.
One thing becomes evil and bad if you add or twist a narrative and see it that way. Now if natsuki in his preteen/teen age years and an adult sought relationship with him, that's a different story.
And true, there are plenty of stuff that are really bad yaoi out there, but please just read fluffy shounen ai if you want to enjoy BL or other stories and don't dig deeper for your peace of mind. Ban yourself from ones with animal characteristics, or ABO universe. Don't seek out ones with smut, mature, and adult tags. Definitely not BL webtoons cuz they're too liberated with their themes. And most definitely not with psychological tags because if this story ticks you off, I don't know what you'd feel about those. It's a tag not for those with perspectives that follows a straight line.

Please read new chapters at the official site. Right now, all 5 chapters are free because it's a new series. Let's make sure that Viz continue to release English versions in the US by bringing traffic to their site.
https://www.viz.com/shonenjump/chapters/shadow-eliminators
Seriously, how stupid can they get! Posting to their social media and tagging the author basically inviting trouble and putting scanlators in trouble and us, readers, without our updates
Truly. It's the most basic unspoken rule when engaging in consuming pirated manga and webtoons. STAY LOW KEY!
But some readers just really want to earn internet clout by posting pirated content for likes and views and risk endangering the whole community. I've seen so many accounts of them in fb and twitter (of all freaking places! this is the socmed most authors use so it's so easy to get caught!)
Then ppl act surprised when authors and publishing companies come after scanlation teams and illegal manga websites.