Ch 9: Taeju tells Euihyun that he smells sweet like a white pearly flower that blooms across the trees.
Ch 35: When Haesung tells Euihyun the same thing and Euihyun realises Taeju's smell is not the same but very similar to that flower.
Ch 72: So far the best representation of how compatible their pheromones are.
Haesung tries to calm Euihyun, later he sees that Taeju's pheromones put him at ease instantly.
Also, you can see in regular panels that their pheromones are of almost the same colour, and they are greatly affected by each other's smell as well.
(I'm not sure what that means in ABO, just an observation. (⌒▽⌒))
Ok ok one thing I noticed idk if anyone has alr commented but,,,
Spoiler for released chapters:
It’s been noted that Taeju and Euihyun’s pheromones fit perfectly with each other (compared to their hectic af relationship at the start of the story taeju this is all ur Fing fault fr)
Taeju and Euihyun seem to have matching scents (as shown from the time Taeju comments that Euihyun’s smell is similar to the little white bloom - only for him to euihyun to react confused, because that’s what taeju smells like to him) FURTHERMORE when haesung tries to calm euihyun down, we see contrasting colours of pheromones (blue and red) but when taeju is calming euihyun down (white and red) their colour’s seem to pair up/merge as one. These details are killing me