Feili likes her name, which translates into English as "free", which symbolizes freedom. She thinks it is a great name, and people around her think so too. She spends a long time, and then she meets a boy who changes her.
"Now~ If you have the ability, try it~" she said to the boy, "Let's play a game. The time limit is until you die. As long as you can catch me, the game will be over and you win. Of course, I win if you die before you catch me."
So the young man started a long chase with her.