EP.6 'The Legend of the Blue Sea (Pureun bada-ui jeonseol)': What is family for Shim Cheong?

Jun Ji-hyun of The Legend of the Blue Sea (Pureun bada-ui jeonseol)

What is family for Shim Cheong?

Looking at patients and their family in their hospital room, Jun Ji-hyun (as Se-hwa / Shim Cheong) says, 

"Family looks exactly same with Bungeoppang.

They are as like as two peas, warm, and sweet."

What is Bungeoppang?

Bungeoppang is a fish-shaped bread(bun) filled with sweet red bean paste.

The snack can be seen everywhere in Korea in winter season on the street.

Now, let's meet some sincere friends of the mermaid in the TV series from diverse backgrounds~

with Heo Joon-jae (Lee Min-ho) who is the mermaid's true love

Shim Cheong and her child friend Yoo-na

She is the only one who can hear Cheong's inner voice.
The little friend's mother is assumed to be a  a woman with a fish's tail instead of legs, who lives in the sea, in the past.

Cheong's con-man friends
Jo Nam-doo (Lee Hee-joon), Joon-jae, and Tae-oh (Shin Won-ho) from the left

They live with their mysterious visitor Cheong.

 with Joon-jae's mother

 Cheong accidentally helps Joon-jae's mom having her pocket picked.

Shim Cheong's homeless friend

She teaches the mermaid how to live without money.

Shin Won-ho starring as Tae-oh in 'The Legend of the Blue Sea' _Screen shots of all episodes included