This is a very interesting drama about Human and Demon world. How the ML (A demon) and other characters (Demons and human) interact. The actors are ALL APPLES TO EYES trust me. ML SML are both so good. HOWEVER, 1 disappointing character is the FL. FL is utterly useless... I am sorry to say this bluntly but (spoiler coming) all she does throughout the drama is just: BEING WEAK and laying on the floor most of the time.

While her main job is SHE WAS BORN AS the GODDESS PROTECTOR of TWO REALMS. And as FL she should be Strong! At least she should know how to protect herself. Because she is the protector of two realms, but all she does through out the drama are basically:

1. given the power by her teacher (Previous Goddess who got killed), she didnt even realize that the 50% power has been inside her body all this time (8 years), and have been thinking the Goddess power is lost and caused the Demon realms starting to trembling and demons can have free access to human realms and caused lots of trouble.
2. Found the Goddess Power thanks to ML, and finally can use the 50% power (together with ML, cause another 50% lays in ML body), to restore the protection of Demon realms.
3. While both ML are fighting, all she does is laying on the floor. Cause she got the plague, while other characters still remain strong and fighting. All she does through that episode of ML fighting is laying on the floor. nothing else.
4. BUT!!!!! In the middle of restoring the protection, she got the flute (50% of Goddess power is in the form of Flute, and another 50% is in the form of bracelet) destroyed. The bracelet is fine, untouched. But the flute that is held by her, the FL, is just broken into two. LIKE WTF!!! She cant even protect the flute!!!
5. Since her flute is destroyed, she needs to make amend or fix the flute, after she fixes the flute, she and other characters SFL and team rush to awakening the good ML. On the way, they were blocked by the Bad Guys, while other characters (Pei and the Mountain DemonGod) fought their life to protect her and the flute she's holding, the bad guys so easily grabbed the flute from her hand, MARK MY NOTE: WITHOUT she even try to fight back. And the bad guy had the chance to input poison into the flute. Thus she's late going for awakening the good ML, so the bad ML had the chance to half destroyed the SML sword,
6. The flute is poisoned, thus she got the poisoned (stupidly). And finally, the ML had to sacrifice himself to save her (sucking all the poison from her body) and the rest of the people. ML died!!!
7. Even during the last fight, all characters are fighting till their last breath, even Pei who is pure HUMAN is fighting a semi zombie and won! She is just there to be easily strangled then laying on the floor being helpless.

Seriously, she is so useless, she should just die... In the near ending, there's an episode, where the Old Tree Goddess explains that She should not be saved (From poison). Because it's the Protector Goddess job to protect the realms, and when she dies, a new Goddess will be born and appointed next... I AM DYING HOPING that she would just die, and new born Goddess will be more useful. Since the FIRST ever GODDESS is powerful, even her teacher was also useful and powerful.

I mean, as FL and as GODDESS, please be more useful. ML and SML keeps on sacrificing and protecting her throughout the drama. WTF!!!!!! Even SFL (Pei) is more uselful and strong, and Pei is HUMAN!!!! Gosh.

But no... the script writer and the director decides that this useless Female Lead Character is better than the Male Character and keeps her alive, while killing the ML. This is the only part of the drama that utterly ruins it for me. I am so annoyed by her uselessness.

All she does throughout the drama is just laying on the floor... crying... being sick... only that.

sigh