Watarirouka Hashiritai, often stylized as Watariroukahashiritai, was a Japanese female idol group derived from the popular idol group AKB48, formed in 2009. The subgroup was originally created with the intention to focus on variety shows, featuring members who were known for their energetic and bubbly personalities. The face of the group was typically Ayaka Kikuchi, Mayu Watanabe, Aika Ota, Haruka Nakagawa, and Natsumi Hirajima, though membership slightly fluctuated over the years with AKB48's custom of team rotations and member graduations.

Their discography includes a mix of cheerful pop songs that resonated with the J-Pop market, creating a series of hits. "Gyu" was celebrated for its catchy tune and vibrant energy, a trademark of the group's sound. Other significant releases like "Seishun no Flag", "Rouka wa Hashiruna!" and "Akkanbee Bashi" continued to solidify their position in the J-Pop scene, with lyrics that often encapsulated youthful exuberance and the bittersweet nature of adolescence. The group managed to strike a chord with hits like "Kanpeki Guu no Ne", which served as the ending theme song for the anime "Fairy Tail", further broadening their audience. With "Hatsukoi Dash / Aoi Mirai" and "Yaruki Hanabi", Watarirouka Hashiritai demonstrated their consistent ability to deliver heartwarming and spirited performances. Though the group disbanded in 2014, its music and the sprightly image remain influential in the idol pop culture of Japan.