Futaribeya: A Room for Two - Vol. 10 Ch. 74.1

[MangaDex]

 

[Kaldrak]

Okay, I know the evidence was blatently obvious before this, but Kasumi is definitely Ace. Also, obligatory 'begone Thot!'

 

[Omega_Keiichi]

It was bound to happen that someone at work would fall for Kasumi and try nonstop to get with her... but really? This character? Ugh..