The Mizuryuu Kei Land from “Oide yo! Mizuryuu Kei Land” is a very special amusement park: in addition to the usual attractions – such as the Ferris wheel, the guest houses and the many different stalls – it is not only allowed here for the guests to have sex with each other, it is downright desired. To avoid misunderstandings, guests must wear appropriate stickers stating what they want; health care is also taken care of, and appropriate “aids” are provided. Even here, before intensive physical contact can be established, politeness dictates that the chosen partner be asked briefly for permission. In the first episode, Mai and her friends, Yuki and Eri, as well as Yuuta and his buddy Kai, are sitting in one of the feeder buses, and nothing stands in the way of their pleasure after getting off the bus. In the second episode, Yuka is employed as a member of an idol group in the amusement park. She reluctantly accepts contact with the public as part of her job. In the process, she meets a nice young man while saying goodbye to the audience after one of her performances, which take place several times a day...