Even when Yoona had already inched closer to Jaejoong, his gaze was still glued on the spot 'she' had left.
Waiting for her to appear again

Yoona had to clear just to get his attention

"Oh Yoona why are you here?" he asked but not really interested as his thoughts were still occupied by 'her'

"Cause I missed you" she replied playfully

His smile went up to his ears. Quickly dispersing all thoughts about 'her'

Suddenly his sister was all he can see and think about

He messed her hair as she pouted

"Let's eat" and placed his arm around his shoulder "Kaja"

He lead Yoona back to the cafeteria. After buying their meals, they settled in a bench at the school garden

"Oppa try this" she put the spoon near his mouth 

Jaejoong complied and munched the food with a smile still on his  face

"Were you being starved? You're eating like a pig" he commented when Yoona took her food one bite after another without even chewing it properly

"Here" Jaejoong held the juice and let her drink

He squeezed the bottle making it burst the juice inside . 

She choked with the sudden fill of liquid in . 

"Yah! Oppa!!!" she glared with her hands easing her chest 

"HAHAHAHAHA!! Mianhe!!!! Hahaha.. You should've seen your face Yoona-ya!!" he can't stop laughing

"Aish!!! she started hitting his chest "I hate you oppa!!!"

It stopped him from laughing. He caught her hands and clutched her nape. He maneuvered her face near his chest 

"Aigoo.. such a crybaby" he teased and s his hands on her waist drawing them closer

"If I didn't know you two, I would think of you as sweethearts!" suddenly Yoochun popped out of nowhere

Jaejoong released his sister from the enclosement

"You're just envious because you don't have a beautiful sister like I have" his hand binded on Yoona's waist

"Whatever" Yoochun forced himself and sat beside Yoona almost eating up most of the space

"Ehhh.. Oppa you're here again to annoy us" she pushed Yoochun to give them more space

"Yeah so just give me hug if you want me to behave" Yoochun suddenly hugged Yoona

Jaejoong slapped his hand to release his sister. His expression was shadowed

"My sister is off-limits to everyone... especially to Park Yoochun" his voice was light but the smile was gone.

Yoochun and Yoona just laughed off his assertion. 

"Your brother is reallly a dongsaeng-pabo!"  he teased but his laugh trailed off then bowed his head

Yoona did the same. Jaejoong was wierded by their action.

His brows narrowed as he scanned their surrounding looking for the answer of their strange act

And was struck when he saw 'her' again staring at them. Curiousity filled him as to why she was gawking at them

Warm hands abruptly cupped his face. It was Yoona's.

She detoured him to face her. Holding his face firm in position so he can't move to look around

The school bell rang discharging the tension that was ampling the air 

"L-let's go oppa!" Yoona forced Jaejoong to stand up and dragged him back to their school building. 

While Yoochun followed them from behind. Walking unusually fast

Jaejoong felt the obvious terror in them. He was sure that it has something to do with 'her'

But what were they afraid of? What's making her scary and barred?

When the class ended, Jaejoong lied to Yoona that he has a club meeting and can't walk home with her.

He was going to follow 'her' again to unravel the mystery engulfing around 'her'. He had to...