I have read the novel and was curious about how worst the "Modified" drama story can be.
It's like disappointed but not surprised.

The modification I didn't like :-
Male lead's personality at start. In novel, he's a family man with "Sweet affectionate behaviour" In drama, he is a purely business minded, analytical.

The good modification :-
Their first kiss and first night. In novel, xiao bao gave medicine/drug to yue yue and both fl and ml hv spend the night together. In the drama, they do have very close scenes but he didn't really kiss female lead until confession.

I don't knew both actors before this drama but I must admit they both are very good actors. Miles (male lead) managed to portray both analytical and sweet personality very well. I really love his facial expressions. They both have sung the ost and their voice is captivating.

However, in many scenes, the music is removed on YouTube. You can see the chinese lyrics but there's no audio. The same problem is there in extra story too.

First 17 chapters kept getting on my nerves but the only reason to watch is the Cute Kid and 2nd Female Lead. Her character and personality is perfect! The cat music for kid makes his interactions cutest.

In first 17 episodes, its just contractual relationship, too many bickerings and ofcourse the annoying fiancee & aunt. Like why the fvck his aunt have to force ml for business marriage

From 18th chapter (from her confession onwards) the story becomes a bit good/bearable because of the romantic scenes. Also the part where she broke up with him is good to watch because of the coaxing scenes.

From 20/21 episode, they try to justify the annoying ex and aunt & put all the blame on a 3rd party (which disturbed me more) I honestly thought the one behind accident is aunt.