Dramas where the villain has a loyal and devoted assistant/follower

I love it when the main villain has a helper or follower who helps him with the crimes and is actually devoted and loyal to him no matter what.

A good example would be tell me what you saw with how loyal they were and almost worshipping him.

Any recommendations?? 

Kesenai "Watashi": Fukushu no Rensa - they are not per say villains, or at least they are villains with intent? Something happened and they take their revenge on those that wronged the female lead and it does get quite dark.

Bloody Romance  - Cha Luo is main villaness and Xing Feng is her devoted "Shadow". He serves her in everything , including evil deeds but still remains somewhat likeable ;))

Six Flying Dragons  - considering that  this drama's  protagonist is Yi Bang Won, who by the end of it becomes pretty villanous, Mu Hyul still remains his loyal swordsmen/bodyguard trough it all

 JesusFan:

isn't that though a common occurrence, as in the hero.herionne tends to get killed off by their companion, and die without knowing what hit them?

That isn’t what i asked for tho….

 emeraldarrows:

The currently airing Snowfall. And the villain queen in Missing Crown Prince has a very loyal and devoted maid.

Thank you!

the usual suspects