Who's the woman in the end scene please give me name

What's the name of woman in the end scene please give me name

Who's the woman in the end scene please give me name

Who's the woman in the end scene please give me name

Who's the woman in the end scene 
If anyone knows tell me her name or manhwa name

How funny is it that Yujae who doesn't even acknowledge Na is working under weaker than him
Isn't that concerning ?

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Good morning