Taewoong's 48 hours of child care duty begins. He takes Jion to the local park where he has trouble changing her diaper. Later when he is feeding dinner to Jion he is touched and surprised that she is able to mimic his actions while he was cooking. Sarang plays dress up with her mom. Her friend Yuto comes over to help take her of the newborn puppies and participate in Sarang's Korean lessons. Hwijae shows the twins how to dry laundry. Later he takes them out for a restaurant to have a Korean feast. Major League Baseball player Hyun-jin Ryu visit the Song home.

Taewoong potty trains Jion, later the two go grocery shopping and he child proofs the home while Jion is taking a nap. Sarang visits her older cousin Yume in Kyoto, Japan. While there she also meets up with her other maternal relatives (her great-great grandmother, grandmother, and uncle). The two have fun wearing hanboks, also her cousin Yume gets to see Sarang's huge eating appetite. Hwijae brings the twins to a bakery where they let you decorate your own cake. Hwijae wants to decorate a cake for his friend Yoon Hyung Bin's son 100th day but the twins won't stop eating the icing cream on the cake. The Song's are still enjoying their time with Hyun-jin Ryu. Later Ilgook takes the triplets skiing.

Taewoong takes Jion out for noodles, where she shows her unique way of eating. Later the novice dad gives her a bath but make her cry when he can't avoid getting shampoo in her eyes. Sarang continues her visit at her maternal relatives home in Kyoto. Her Great-grandmother and Grandmother learn a few Korean words to communicate with her. Later Shiho arrives and the entire family visit her elementary school. Ilgook brings the triplets to a village where the boys are transformed into ancient Joseon scholars. Minguk can't stop crying after he gets scolded by the teacher for painting the floor with black ink. Hwijae takes the twins to a cat cafe with get them familiar with cats. Seojun shows his mischievous side when he won't stop knocking down blocks that Seoeon is playing with.

Jion shows off her dance talents at a ballet class. Later she goes to the doctor's office and shows her braveness when she hardly cries. Hwijae and the twins goes to the Noryangjin fish market to explore. Seojun shows his curiosity and fearlessness when he asks his dad about the all species and touches all of them without fear. He also shows his pickiness for food when he refuses to eat any of the delicious cooked seafood dad has brought, instead sternly demands to only eat a corn dish. Sarang and Sunghoon are in Korea, first they have a meal with well known actor Cha Seung-won and later visit the Song residence. Sarang has fun with the triplets and Manse shows his adoration for her.

The Twins have a special gym class competition. The Quintet get haircuts as a family. The Triplets continue their stay at the military barracks. Ji Ohn hikes a mountain.