Shuhua and Yuqi are cousins, but they were raised as sisters by their grandparents since both of them became orphans at a young age. Now the two of them live at their grandparents' house with Soojin, Shuhua's wife, and their new bundle of joy, Jina. Their friends, Miyeon and Minnie, were also present almost daily, giving all their support and love to the infant but Yuqi's girlfriend, Soyeon, is surprisingly always present and available for diaper changes, babysitting and even crying fits at the ungodly hours in the mornings. The shy grump musician ends up surprising everyone with how much care and tenderness she has for the baby often.

Right now Jina's cries are echoing in the house. Soojin had a business travel and looks like Jina is not handling well her mama's absence. Yuqi felt her muscles hurt and she hadn't managed to get more than four hours of sleep this week. She's so exhausted as she drags herself down the stairs to get Jina's bottle ready, Shuhua collapsed so hard on the bed Yuqi didn't dare disturb her sister. She was pretty sure it was the first time that woman had even closed her eyes since Soojin travelled and the brunette knew that while she loved her daughter, being a mom hadn't been easy on her.

Yuqi yawned and rubbed her eyes as she warmed up Jina's milk on the stove, Soojin had insisted that she wanted to feed her daughter in the nights to let Shuhua rest so they have a stock of milk on the fridge.

When the milk gets warm enough, but not quite approaching hot, she realizes that the crying is no longer audible. In fact, she hears what soundes almost cooing. Confused Yuqi goes to Jina's bedroom and gets a surprise as standing by the crib with a smile on her face is Soyeon with the baby in her arms.

- Hey, Jina, it's me Aunt SoSo. You remember me right?

Soyeon grins down at the infant, running her hand over Jina's face with care. Yuqi feels her heart swoon and she leans quietly against the door frame, not yet wanting to interrupt the moment. Soyeon, obl