yes it has bdsm and I am not a fan of it but thru this story I got to understand why some people might like it. it's a really emotional story of two broken adult men navigating lives....it's very mature. I am not generally a fan of these kind of stories but i can't even lie there's something so beautiful here. it has blue undertones in its artstyle and it's such posting thing because the characters are feeling "blue" haha. i love the story (despite it having tropes which are my pet peeves like age gap) but the age gap is well executed, there is a lot of past flashbacks and how they were genuinely intertwined not through fate but mere choices they made that had a butterfly effect.
does this have bdsm in it? undertones?