Episode 5
S1, E5: When Mu-jin's father grows suspicious that his wife is having an affair, he asks Mu-jin to look into it; but during his visit, Mu-jin encounters the ghost of his mother's close friend, who pleads for justice.

S1, E5: When Mu-jin's father grows suspicious that his wife is having an affair, he asks Mu-jin to look into it; but during his visit, Mu-jin encounters the ghost of his mother's close friend, who pleads for justice.