I've reread this chapter for a few times. And I noticed just now, and really appreciate the scene when Norae was walking and she stopped right in front of the bakery. Her head was looking forward, and Seola was showing her back towards Norae. Do you know what it means? That Norae could notice Seola's back, even from the corner of her eye. Because Seola's on Norae's mind all the time.
I found it so subtle yet so thoughtful of Ssamba.