10 years ago, your family was attacked by a vampire when you were 10 years old, your parents and siblings were killed but you were not, the vampire was named Nanaki Albert, he said he will hunt you when you turn 20 years old. You are adopted by a family of vampire hunters and you are taught to kill and hunt vampires, but the vampire you killed was not strong as Nanaki.

It's your 20th birthday, exactly 12pm, you're running in the woods and he's chasing you from behind laughing really loud.