Done both. Worth to watch. Can be described as one of the best cdrama for 2021. Made me cried a lot at the same time smiled and laughed. Maybe some peoples will think this drama kind of boring because it doesn't show more romantic things like kiss etc. Listen, even though this drama doesn't have much that elements. It still light up my mood to continue until the last episode of Forever & Ever. At first, i just wanted to watch One & Only (without any expectations). Who knew i would click the next episode button again and again. I cried a lot while watching O&O. Then, i continue to watch F&F hoping for their happiness again & again. So, yeah i'm satisfied & happy that i made the decision to finish it! The lead characters were well played by Ren and Bai Lu. More thanks to writer & director that made this story different than others. If you still thinking whether to watch it or not. Just watch it. I finished it only in 3 days. Hehe don't mind me i'm on my holiday😆