@weepingkelly28
As far as I know, no. I don't think even her name was given yet and and also she is quite young. So either she will be some kind of relative from previous work (like child of main couple from older ones, sister or something) or Seo is setting her up for his next work. I mean she haves a lot of screen time and kind of connects all characters here. So who knows, bar manga spin-off about listening to customers problems could be nice.
Meeting not one, but two editors he knows in some dingy bar that one time he decides to visit it (since we assume from dialogue he's not a frequent guest).