This quest is unlockable from level 10+. Completion of the quest unlocks new interactions with infants and a new infant hobby, Musical Expression. If you complete the quest within the time limit you also unlock new outfits for your infants.
|2. Meet the Nanny||1 minute|
|3. Rant to the Nanny||15 minutes|
|4. Go to a home with an infant.||None|
|5. Relax with an infant on a couch||15 hours|
Sorry this is as far as I am at the moment