Keijo!!!!!!!! (競女!!!!!!!!, also known as Hip Whip Girl) is a Japanese sports manga series by Daichi Sorayomi. It has been serialized in Shogakukan’s shōnen manga magazine Weekly Shōnen Sunday. The series is set in an alternate reality where a new, women-only, gambling sport known as “Keijo”, quickly becomes a fad in Japan since its introduction in the dawn of the 21st century. Keijo matches are held atop floating platforms in large water-filled stadiums where bikini-clad players fight to incapacitate their opponents or push them out to the water, but they can only hit each other using their breasts or buttocks. Nozomi Kaminashi is a gifted gymnast who decides to give up her dream of competing in the Olympics and become a Keijo player instead, aiming for the high earnings offered there, in order to get herself and her younger siblings out of poverty. As she enters the world of Keijo, Nozomi soon makes new friends and rivals, while learning that the way to fame and fortune in this new, uncommon sport will have more challenges than she ever imagined.