There are two different versions of the single with different tracklists: a limited edition and regular edition. This single is "short story single" because it comes with a booklet containing a short novel written by Suzumu. The lyrics and novel express how starting at the same point can branch into different endings.

[Regular version (Elegy End)]
01. Zetsubousei: Hero Chiryouyaku feat. Soraru (music & lyrics: Suzumu)
02. Haiiro Shounen Rock feat. Soraru (lyrics & music: Suzumu)
03. Kashokusei: Idol Shoukougun -GigaP Remix- feat. Soraru & Lon
04. Sekai Jumyou to Saigo no Ichinichi feat. Soraru (lyrics & music : Suzumu, arr: 150P)

Amazon JP: http://www.amazon.co.jp/dp/B00DCQ04PU/

[Limited edition (True End)]
01. Zetsubousei: Hero Chiryouyaku feat. Soraru (music & lyrics: Suzumu)
02. Haiiro Shounen Rock feat. Soraru (lyrics & music: Suzumu)
03. Hannin Tokutei Site feat. Soraru (lyrics & music: Suzumu)
04. Zoku Hetakuso Utopia Seisaku feat. Soraru & Lon (lyrics & music: Suzumu)

[DVD]
- Suzumu and Soraru as cameramen show around the recording studio

Amazon JP: http://www.amazon.co.jp/dp/B00DCQ04PU/