It was a chilly evening and stars filled the sky. Two girls were stargazing. 

"Wow! So many stars! Seungwan, do you know how many stars are there up in the sky?"

"There are billions of stars unnie, but we only have one star in our solar system and that's the sun. The stars you're seeing now are light-years away from earth."

"Wow, daebak! You're really smart Seungwan!"

"Not really, I just read that from an astronomy book. You know unnie, when I'm old enough to pay for my own expenses, I'm going to buy a telescope."

"A telescope? Why?"

"Because I want to explore the night sky. I bet I'll be seeing more stars and planets when I have a telescope."

"That would be so cool! Oh, look a shooting star! Come on let's make a wish Seungwan!" Joohyun immediately closed her eyes and clasped her hands to make a wish.

When Joohyun opened her eyes and saw Seungwan looking at her incredulously, she asked, "Why are you looking at me like that?"

"Wishing on a shooting star won't make whatever it is you wish come true unnie. There are no scientific bases for that. And it's not really a star. It's just a piece of rock that hits the Earth's atmosphere from space. It glows because-" Seungwan didn't finish what she's saying because Joohyun covered .

"I don't care if it's scientifically proven or not. When I say you wish on a shooting star, you wish on a shooting star. You should obey me because I'm older than y