Tite Kubo's hit manga series Bleach launched in 2001 in Japan, and it soon became part of Shonen Jump's fabled "big three," along with Masashi Kishimoto's Naruto and Eiichiro Oda's One Piece. Naruto is obviously named after its eponymous character, whereas One Piece is a reference to the legendary treasure belonging to Gol D. Roger, the Pirate King. As such, Bleach has the strangest name of the Big Three, one whose meaning isn't exactly obvious, even today years after the series' ending.
Source：https://www.cbr.com/bleach-name-explained/
