In a nutshell this show is a workplace romance/age gap love done the Japanese way.
It is short, fluffy and pain/angst free. The meet-cute is, honestly, illogical but j-drama excels in carrying this type of setup forward and creating a whole drama around it. It worked but this is no high drama and it will not get your little grey cells working overtime.
What this show gave us are swoon worthy moments and skinship with the works. The cute and naïve FL trope is on steroids so we have the whole (cough) inexperience package. Thankfully, the experienced and much older ML did not exploit this but just ate her up with his love and lust.
There is barely enough material to last 8 episodes but they padded it out with lots of flashbacks. A few red herring subplots and a half hearted love triangle tried to raise the angst level but it was never going to be effective against the rusted on OTP and it is all about the OTP.
A decent watch in the end but goes down better with popcorns. :)