11. 69. When Did They Grow So Big?

Taewoong brings Jion to a storybook village to take photographs of her to update her baby book. Sunghoon takes Sarang to the dentist where she shows she has grown a bit as she did not cry. Later they head to the park to enjoy the cherry blossoms. The Lees move into their new home and later they invite the Songs over to celebrate the twins and triplets birthday together. Before heading to the Lees, the triplets learns to quit using diapers with disastrous results from Manse.