Naniwa Danshi's 10th single, "HARD WORK", serves as the theme song for the drama "Yokohama Neighbors Season 1", starring member Ryusei Onishi. As the group enters their 5th anniversary year since debut, the song is finished as a track that allows listeners to feel the growth of Naniwa Danshi. In addition, the single also includes "Never Romantic", which was released last year as a digital single and served as the miracle theme song for the movie "Romantic Killer". As this release marks the first single of Naniwa Danshi's 5th anniversary year, the release of a Limited Time Production Edition has also been decided. The CD includes "HARD WORK" as well as a new song (S) (title is to be announced). The CD package features a paper sleeve jacket for the first time, and is offered at a special limited price. *Available until the end of March 2026.