A pair of close female college friends take on a squirting battle challenge for a 100,000 yen prize! Approached on the street and initially hesitant, 'Karen (22)' and 'Saya (22)' eventually come to the studio. Both 22 years old and studying business administration, the close friends appear curious yet confused when the squirting battle concept is explained. When asked if they know what squirting is, they respond with feigned innocence: "Huh? I don't get it—what do you mean???" Without hesitation, they're handed special squirting toys and the game begins immediately. "U-um, let's do our best together..." they say, showing willingness to cooperate—but what will happen next promises an exciting development!