Captain Straydum is a Japanese j-pop and pop rock band formed in 1999, known for combining a strong 1970s rock influence with a modern indie pop-rock edge. The group’s lineup includes Seiya Nagatomo on vocals and guitar, Umeda Keisuke on bass, and Kikuzumi Moriyoshi on drums, giving the band a classic three-piece setup with a sound shaped by both retro rock energy and contemporary pop sensibilities.
After forming, Captain Straydum signed to Sony Music Associated Records, helping establish the band more firmly within the Japanese music scene. Their songs have also been featured in anime such as Gintama and Naruto, which introduced the group to anime listeners and strengthened its visibility in the broader pop-rock and anison-adjacent landscape. The band has built a strong reputation in Japan while remaining less widely known overseas, making it a notable name for fans searching for Japanese anime music and pop-rock acts from the late 1990s onward.
