"Please have one of you taken from right in front of me now." Suddenly informed of this project. A new form of lesbianism that challenges the well-known close duo of yuri couples—swapping. Seeing a close friend being taken right in front of you. Feeling the gaze of a close friend while being taken by another girl. A complex feeling that is first known through swapping. And the subsequent lesbian sex with the close friend is more exciting than ever...