The story is well filmed and directed. The only problem is that the dream takes too long ... more should be devoted to the ending, which is rushed. More should be shown between the dream and the real world. What the ML said and how the FL responds in the the dream world.

Well, there's enough evidence that it can be a HE ... the script writer has put everything there that shows that they can be together if she accepts and loves him. This is a BIG IF though ... but in the dream she loves him so maybe it will carry through. In her dream she already worked out that she shouldn't hang on to the first love, ZYL, and the imaginary defender, HRZ.

She already knows that she shouldn't hang to HRZ as a self-protector because she knows she is strong enough with ZXW's love.

She went to the coma with the assumption that NO ONE cares and loves her. She wakes up because ZXW shared that he has always loved her for the goodness in her. He gave her motivation that she can do good like sharing the incense with everyone.

So it's a good ending because there's no need to explicitly say everything. BUT it's rushed!
I gave this drama an 8 because I feel the ending is rushed. There are 2 ways to deal with this: either show more interaction between the dream and real life (ie. he talks to her IRL) ... show those interactions or develop the ending more. The ending is rushed so we are left with a few cartoonish abrupt transitions. I think they should show how the ML talks to her during her dream and how she reacts (this is only done at the end).