"ALONES" is OP 6 of "BLEACH" (ブリーチ Burīchi) which is a Japanese manga series written and illustrated by Tite Kubo. Bleach follows the adventures of Ichigo Kurosaki after he obtains the powers of a Soul Reaper (死神 Shinigami, literally, "Death God") —a death personification similar to the Grim Reaper—from another Soul Reaper, Rukia Kuchiki. His newfound powers force him to take on the duties of defending humans from evil spirits and guiding departed souls to the afterlife.
Soundtrack CDs of "BLEACH" including ALONES were Composed and produced by Shirō Sagisu (鷺巣 詩郎 Sagisu Shirō, born August 29, 1957) who is a well-known Japanese music producer and composer. With a career spanning over 25 years (beginning in the late 1970s), he is best known for his work as a record producer for acts including Misia, Satoshi Tomiie, and Ken Hirai. Sagisu has also worked as a film composer for several anime and films and is well known for his collaborations with Gainax, especially the soundtrack to Hideaki Anno's series Neon Genesis Evangelion and for the Bleach anime adaptation. He won the Tokyo Anime Award for Best Music in 2010 for Evangelion: 2.0 You Can (Not) Advance.
"ALONES" is well known by people and if you like it, you can also download free ALONES sheet music to play with Everyone Piano. Just Enjoy It!