I love your observation that we see both Ji-ah and In-beom pushed out of their comfort zones in this episode - both situations were played with the right mix of discomfort, awkwardness and subtle courage for the characters.
While InBum already know about their connection she recalls JiAh's mum , now it's JiAh's turn to find out InBum's uncle and why he doesn't know he's dead.
Late at night when Daebak Realty operates, In Beom visits Ji Ah to make an offer.