Ding Dong, Let's Play...

Long ago, in a seemingly ordinary neighborhood...hide and seek was a favorite. Everyone loved playing this game. But children didn't know that something inhuman had been watching them for a while. A girl was its target...she became the seeker, and chose a hider. Now...hide and seek will never have an end. Or will it?
HIGHEST RANKINGS: #24 in songfic, #38 in Vocaloid, #858 in paranormal, and #952 in horror.
EDIT: I know they're brother and sister in the song now! I didn't know at the time and I'm not going to change it.

This is based on Vocaloid SeeU's song, 'Hide and Seek'. Hope you enjoy it! This will be from Akito and Rina's POV, and also from 3rd person. Yeah, Vocaloid can be creepy...