They are very similar in some ways but after watching the YAMH, I know that it compensates for the loopholes in DOTS (esp when DOTS has 20 ep while YAMH has 40 ep). Although the drama sounds long with the details they added are worth your time. In other words, YAMH has the elements that I was hoping for them to include in DOTS too. I always rewatch DOTS from time to time, and now I know I would do the same to YAMH. I really like how the Xing Kelei and Mi Ka ways overcome the third wheeler in their relationship, very rational and mature yet adorable (for me, the main couple in YAMH are more mature than DOTS in terms of how they handled their relationship, but I do love both!)