20yrs gap
i was really curious too but i don't think the author specified it, but i myself thought it was 20/21 + late 30s, i mean the professor does look middle aged but he's really skinny which i think makes him look a bit older? so mid to late 30s made more sense to me (also supposedly 20+ college + 10 years of performing (if i'm not wrong) so late 30s makes sense to me) he can't be older than 40 i think
We don't know Garam age for sure, but professor birthday was shown in chapter 2. He was born Feb 13 1978. Garam's college entrance was in 2019, so that makes Heejae at least 41 years old. As we progress until latest chapter here, he could have been 42 years. I'm sure Garam is in his early 20 too. Their age should not be far than 20 years gap.
I was wondering what's the age-gap between them, I think garam is 20 yo but idk about the professor tho. I feel like the age-gap is 20 or something close to that.
It's not that I mind the age-gap as long as you both are adults but I'm curious