Because she was adopted and raised by a project scientist (Rhee Iseul), Rhee learned what she was as a teenager and has spent the time since then trying to keep a low profile to avoid the chance that council agents might find out she survived and wondering what became of her fellow clones. Being a part of the forensic team at the NIS gives her access to many databases to help her on her quest, but she has expressed interest in going out into the field. After all an active field agent can turn up in more places...as one of Ji Soo's work buddies she can either do her utmost to protect ji soo from the conspiracy - and cause tension in their relationship - or confess what is going on and enlist her help. or both. There's plenty of chaos these two can get into, especially as Rhee's past comes back to haunt her.

As a clone, Kang Seulgi is the canon face. More info can be found in her Generation 1 - clone blurb. She currently has several connections in play.