I was hooked from the start and binge watched without initial expectations at the end - what a gem!
Just 8 episodes, could be more.
Heartwarming - I almost cried the whole 8 episode. Bromance - though bl elements were in place (hugs, support, escape to the beach and then to the motel, no hesitation to help each other).
The main thing: Im totally satisfied with the end, as there was no room for anything else. If Yi Heon returned - his life wouldnt be easy, just new difficulties : gangster resolved issues he saw, yes. However: did Yi Heon participated? Did he learnt how to deal with previous situations? No, he already gave up, and most importantly: who said it would be easy to even maintain what he would receive upon returning? It is sad, but true: from his perspective nothing has changed! He didnt resolve issues which led to suicide, and if he returned he would face new level of challenges just to maintain what Deuk Pal achieved - so technically, circumstances havent changed a lot to allow him to return and continue happy life. I would be rooting for Yi Heon return in two cases: if both could return and stay friends, or if Yi Heon actively participated in his life changes under Deuk Pal mentorship - but that will be completely different drama/scenario.
I also love humor in the drama and mature resolution of issues, without questioning or plot holes. No annoying characters or toxicity without redemption.