Jeaki: *sees collar ID saying 'Jagiya'.* Haha, Laon, your girlfriend is calling

Iseul: That sounds important

Gyeong: lol, what if he's in trouble?

Laon: She's not my girlfriend

Also Laon: Hey, babe.

That's it. That's literally thier relationship. I needed to bring it back because it for too perfectly. Oh! For people who don't know Jagiya roughly translates to Honey or Dear. There, that makes more sense now.