S1·E10 Episode 10

Mun-hee is surprised when Soon-jae tells her she has an upset stomach after examining her, because she has never had an upset stomach before all her life. Joon-ha is surprised, too, and he becomes worried about the changes in his mom. Meanwhile, Shin Ji is back from Russia and she tries to sneak into the house to get a look at her son Joon-ee.