Rushing, continuous climaxing, multiple partners... "Men who have a high level of lust for me... are so naughty...!" Iroha has obtained an app that shows a man's level of desire for her. She is told that by using the app, she can find out a man's "degree of lust for her". She is a little skeptical, but when she tries it, she is thrilled to find out that men around her are sexually looking at her. Furthermore, with men whose lust level is over 800, the app asks the question, "Would you like to have sex with me? The moment you press "Yes," you will be asked if you want to have sex with him. From the moment she presses "Yes," Iroha is swamped by ravenous pleasure that she can't get out of...