You're The Brightest Star In My Sky

"I will become the brightest star for you. Just you wait! And then after I become the brightest star I will marry you!"

That's the promise of young star to her childhood friend, Axel when his mom died.

"I will come back for you, I promise. So don't cry anymore, my little star"

And that's the promise of young Axel to young star when he left her.

They grew up in different places and in different ways. She grew up loved by her family while he grew up being ignored by his own father. He witnessed his own father being killed by an unknown person. Without anyone to inherit the company. His grandfather and grandmother stepped in and raised him with care. His grandfather took over the company for the time being until his grandson reaches the right age.

After 16 years they met again at a party not recognizing each other.