It was a warm sunny day in july.. It was in a very peaceful park until~

"YAH!" a girl yelled chasing a boy. The boy kept running away with her doll in his hands.

"Yah! Heechul-yah! Give her back!" the girl begged.

Heechul turned around and grinned at the girl. "Aren't you a little to old to play with dolls, Jina-yah?!" he yelled back at her.

"Aniyoo! I am not!?" Jina yelled, scrunching her small face.

After a while Jina finally gave up chasing after little Heechul. She sat on the warm grass and laid down.

"Oi? Don't tell me you've already given up?" the boy said as he sat next to her.

Jina furrowed her brows, a subtle crease forming between them. "I swear by God that I could hurt you right now!" she said while attempting to slap the boy.

Heechul frimly grabbed the her wrists. "And i swear by God, that i could make you fall for me," he smirked at her. Jina looked flustered, her cheeks blushing pink as the boy inched closer. Heechul suddenly let go of Jina. She stumbled back and rubbed her wrists which he was grabbing onto so tightly. She stood up and looked away from Heechul who was still sitting on the ground.

"Oh, yeah?" Jina smirked as she glared down at him.

"Yeah. Bet?" He said grinning. The boy then stood up and crossed his arms and stared Jina back into her eyes.

The girl put her hand on her hip. "Sure!" she smiled. The boy was about to say something but Jina interupted him. "On one condition, we are still 12--"

"Yeah.. But, remember i have to leave this year but i promise you I'll be an idol and WILL make you fall for me!" He said confidently as he fist pumped the air.

The girl rolled her eyes, "yeah, sure." She began raising her voice as the boy began walking away, "I bet you won't even remember this bet, anyway!"

The boy stopped and looked behind his schouler, not fully turning around. Jina could only see half his face but she could tell the boy was smirking. Heechul then walked away, giving one last salute to the girl behind him.

"Aiishh, that idiot! I wanted to say to him let's start this bet when we are 19 or something! Aish, i'll telll him, some day?" She said to herself as she watch his figure fade away into the distance.

"Oh!" Jina's annoyed face then wiped off, looking slightly confused. "Where is my doll?" She said as she looked around.. "There it is!" She yelled as she picked up the doll. A letter fell on the ground:

"Annyeong Jina-ah!,

It's Heechul. Let's make a bet, okay?

I'll become an idol and WILL definitly make you fall for me!

Just wait and you'll see.

I'll make you fall for me when you turn 19 years old. And i will be 20 just wait.

Signed,

Kim Heechul"

Jina smiled as she read the letter. "We'll wait and see until the day I turn 19, Kim Heechul." She said as she looked at the direction that the boy walked away.