Soft and loud melodies entered Yume's ears as she slowly fluttered her eyelids open. She saw herself beside chairs and desks. Looking up was the ceiling lights flickering and making sparks.
A bit of pain was still present at the lower part of her body once she hauled herself up into a sitting position. Panic at once entered her body when she suddenly noticed that she was not in the place she once was with her two partners...
[i]"K-Kiku? Shirako?[/i] She hoarsely called out. No answer. Only continuous sounds of soft ballad tunes playing non-stop.
Yume shakily stood up, but it was obvious her stamina and energy was already draining out. She looked around and could have assured that she was in a hallway, not inside a classroom. Moreover.... her friends! They were not with her. She was alone.. or so she thought....

Before she could go out of control, she looked at the front center of the classroom where she found a grand piano in where a little figure sat, playing it. On the floor were scattered and torn pieces of paper.
She slowly moved to the side to take a better view of the figure to make out it was a little girl. She then remembered the children, the spirits. Could she be... one of them?
Yume's legs started to shiver in fear. She covered her mouth to control her breathing. What if that girl does something to her? Like that one....

Yume ducked down and hid herself behind the scattered chairs and desks, enough to peer the top of her head to look at her surrounding. There were 2 doors; one more further away from her reach and seemed tightly shut and one somewhat more closer to her reach, but yet, it was still far, but the good news was that it had a gap. It was open!
[i]If I make a sound... it might go ballistic on me!... I need to make a sequence.... and the timing....[/i]

The melody particularly sounds the same, as if it is endlessly repeated. The tune of the music goes highest and loudest to slowly slowing down, making a slow pace and fading. The little girl might be putting much more focus by the loud part of the tune, making her unable to notice Yume.
Yume timed her movements by the melody. She had to wait for a few minutes for the whole music to reach the loud part. What was tricky was that she had to pass through the chairs and desks without attempting or making any small noises.

[i]Almost there.... almost there....[/i] Annnd she reached the finished line!
The music of the piano at the moment was the slow part, so Yume had to wait a bit more for the loud part. Once it commenced, she slowly stood up and reached the door knob, keeping her eye on the little girl. Throughout her plan, she hasn't noticed a speck of Yume's movements. [i]Yes![/i] 
Yume then opened the door slightly but....
[i]Oh no...[/i]
The door gave out a loud creak sound.