As usual a 6 years old Nayeon, 5 years old Sana, 4 years old Mina and 3 years old Dahyun gather to play together.

The 4 of them have become friend for awhile. 

Dahyun as the youngest getting ton of love from her unnie.

"Dahyunnie~ you are cute" Nayeon admires Dahyun while feeding her.

Sana quickly snatches the spoon from Nayeon.

"No Unnie. Dahyun is only mine."

 "She is mine"

"No. She is mine"

While the two were fighting each other over Dahyun, Dahyun crawls slowly and sleep on her Mina unnie's lap.

Mina looks at Dahyun while caress her head.

"Unnie Is so pretty" 

The pink shade slowly appears on Dahyun's cheek.

Mina chuckles at the younger's cuteness. 

Nayeon and Sana suddenly come and cries.

Even Mina is the 2nd youngest, she feels like she is the oldest right now.

"Unnie don't cry!" Mina wipes Sana and Nayeon tears

"Dahyun is mine right? Mina" Nayeon pouted at Mina.

Mina nods and smiles.

Suddenly Sana cried louder. Mina went to Sana's side and hug her.

"No Dahyunnie is mine" 

Mina smiles again.

"Yes yes unnie. She is yours now don't cry"

Today is Dahyun's Birthday. Everyone including Nayeon, Mina and Sana come to celebrate with her.

"Mommy I want to date Dahyun" Nayeon suddenly said to her mom.

Sana heard that she slowly went to Dahyun's side and hug her.

"She is mine!"

T