Gain (EP)

Gain is an EP released by the Japanese band Sadie on December 30, 2009. It was issued in two editions: a regular edition with the bonus track "Regret" and a limited edition with a DVD containing the music video for "Ever" in a slipcase.

1. "Ever" – 4:58
2. "Brain Core" – 4:39
3. "Beauty Shadow" – 4:41
4. "Chaotic World" – 3:30
5. "愛しさは孤独の支配者 [Itoshi sa ha Kodoku no Shihai Sha]" — 4:44
6. "Regret" – 4:44

• Mao – vocals
• Mizuki – guitar
• Tsurugi – guitar
• Aki – bass guitar
• Kei – drums