Prologue
The cool winter breeze blew across her face, making her long braided hair fly in every direction. As she was panting towards a person, she was gripping a robotic turtle she found outside her doorstep no longer than an hour ago. The 8-year-old brunette grabbed on hold of a same aged girl with short, cropped hair.
"Hotaru!" the brunette cried as she forced back the tears, "Is this true? Are you really going overseas?"
Hotaru Imai looked at her best friend with a blank face. However, her words did not match her expression.
"Mikan, I promise you, I will not leave you forever." She said.
With those words, she handed Mikan a little box, gave her an awkward hug and crawled into the black limousine that was waiting for her.
As the car was driving into the distance, Mikan Sakura smiled as tears streaked down her face and waved good-bye to her best friend.
"Hotaru Imai, you better not forget that promise."