Sangtae and her adolescent daughter, Do Yeon, have a tense relationship. The father and daughter are quarreling and have not really talked with each other for many years.An accidental fantasy incident caused the two people's souls to exchange unexpectedly and they were forced to spend seven days together in their identities.This awkward and unfamiliar experience forced them to stand from each other's perspective and understand those feelings and pressures that were once ignored.