I don't think so, because he doesn't look like a top and he texted Doc, not hyuk- so-
The first time his best friend saw dr han, he ponders that dr seems familiar. (maybe he stalked the tutor and found the tutor with dr, maybe they were classmates or lovers or something.)
When Dr. Han looked through Hyuk's school album, he didnt stare because hyuk was effin cute, but rather he looks like he was reminded of something but couldnt put a finger on what exactly it was. The way they showed that scene seemed to portray something... Deeper?
Idk, just a theory
Plus hyuk's best friend imagined himself topping hyuk, but was bottom for the other friend so..... ლ(´ڡ`ლ) may hyuk's tutor can both bottom and top too
wait what chap
Chapter 11 page 11, Hyuk's best friend seems to recognize the doctor
Chapter 17 page 4, the look on Dr. Han when he first saw the younger photo of hyuk, then he just gave a composed smiled when Hyuk reacted
BLACK HAIRED DUDE IS THEE TUTOR WITH THE BIKE THAT HYUK MESSED AROUND WITH!!!!! I THINK HAHAHAHAHA JUST A THEORY