Not really in the raws it’s getting longer now up to ch27, and Dobin hasn’t been exposed yet. I mean there was one time when ML almost removed his blindfold bec he thought the therapist was a being a pushover and remembered Dobin, like he takes in everything even though he was being rough in sex. So, ML was curious what the therapist looked like and removed his blindfold, but Dobin was faster than him. I’m guessing Dobin will be exposed by the end of the Manga’s Season.
He is gonna be exposed im next chapters :(