This was awarded to those who preordered Syndrome's CORE mini-albums from Like an Edison. It features unreleased solo songs from each of the members.

Kouchou was the project of Asagi and Shion. Their song is an instrumental version of Koibumi ~Yakusoku no Jumoku~, which was on the Decadence 2002 omnibus.

ALLURE was the project of Ruiza and Satsuki (of Mist of Rouge).

KISAKI SOLO-WORKS is KISAKI's solo project, credited under another name (in the early 2000s, he hadn't solidified the names of his solo incarnations). The track Aishuu no Kataomoi is a demo version of what would later become KISAKI PROJECT's Aishuu ~unrequited love~.