Tobira no Mukou e (扉の向こうへ)

"Tobira no Mukou e" (扉の向こうへ) is a song by YeLLOW Generation, a female J-pop trio signed to Sony Music Japan's DefSTAR Records from 2002 to 2006. It was the second ending theme of Fullmetal Alchemist (2003), animated by Bones, and is one of the group's best-known singles. It is also included on their 2005 album life-sized portrait.