This is one of the best written BL stories i've seen in ages. There is coherent adult characters that behave like logical sentient human being with relatable reasons for why they make certain choices. Plot line is simple but very well done and dialogues are incredibly well written and engaging, they actually make you want t listen to what they have to say and see ho things will evolve (and yes characters DO talk about things instead of having ridiculous misunderstandings that makes you eye roll so badly you're scared your eyes will fall out of your head).
Acting is great too, for all the characters form leads to secondary actors, all perfectly chosen. Differently from some comments i've also felt the chemistry and the sensual tension between the main characters from start to end, to me it was expressed perfectly and was on point. The contrast between their younger self with puppy love and all the uncertainty of a first relationship and their adult self with acquired confidence and experience is evident and again very well presented. An unexpected gem of a story that it's worth watching and rewatching too