This is an excerpt from the final part from Shoujo Tsubaki / Midori / 地下幻燈劇画 少女椿 based on Maruo’s Mr. Arashi Freaking show / 少女椿. The song that starts to play as soon as Midori finds herself alone is just amazing (not to mention the rest of the movie). Credits to J.A. Seazer for creating it or whoever should be credited. Apologies for the shitty quality but well, at least is listenable. Plus I just cannot find the song alone, so just deal with the dialogue :P
And if someone knows the name of this song, feel free write it down.