She suffered a miscarriage, due to that she no longer had the ability to have kids. She felt like it was her fault, Gotou didn't think so when she kept apologising about it, however he didn't voice what he really felt to her, because of this they slowly drifted apart. However, she Atsuko still stuck to Gotou through all those years despite the fact that he was always at work. After Isshin's death, Atsuko and Gotou took Nao in as their daughter. This began to fix their relationship.