Alchemy

 is a song covered by Poppin'Party.

It is one of the challenge songs for the event Welcome to Open School!

It was an original song by Girls Dead Monster, a fictional band from the anime Angel Beats!, with Marina singing for the character Masami Iwasawa.

Trivia

 * Despite being a cover of a Girls Dead Monster song, the GBP album artwork depicts the instruments of Ho-kago Tea Time from K-ON!, though with Ritsu Tainaka's Hipgig drum kit recoloured in black instead of yellow.