Hello Sleepwalkers is a five-member Japanese alternative/progressive/experimental rock band from Okinawa formed in 2008 consisting of male/female vocals and 3 guitarists. Members are Shintaro (Vocals & Guitar), Narumi (Guitar & Vocals), Tanko (Guitar), Makoto (Bass), Yuki (Drums). The band is signed to A-Sketch Music Label and have several studio albums and singles. They are best known for performing the opening theme song of the anime Noragami, "Goya no Machiawase" (Midnight's Appointment). In November 2018, the band went on hiatus. They restarted activities in October 2021.