
at this point, author is just flexing their drawing skills on us. all those angles man... they're so beautifully drawn

Yep, that could very much be it. That also means that there are at least a similar-looking, if not a twin-like flesh and blood model of Seungho, Na-kyum, Jihwa, the teacher... some easily recognisable faces, now; imagine standing in line for groceries and a jeans and T-shirt Na-kyum with/or an eye-glass wearing Seungho pop(s) up behind you. I know my jaw would be dropped.
don’t care anymore about no hwan... that uke is my weakness ლ(´ڡ`ლ)