Responses
I don't know if this is right but the Manhua might be Pheromone impossible. I put your description in Google and their AI Gemini came up with that.
That's the manga
it is. cuz this is the description "Peach-pheromone Luo Zhiyu and tangerine-pheromone Xiao Yan" idk if it's here tho. found this on a different site.
It's been so long since I saw this manga but here are the some details I remember. The manga is chinese bl, omegaverse, the omega had peach Pheromones and the alpha I think orange?. They both will go from enimes (kinda) to lovers. The alpha is one year elder than the omega. Omega has Pinkish hair colour and the alpha dark blue. There is also one scene where the omega beat the alpha with broom i think.