Kôichi 是一个独居柏林的日本人。 他没有工作，几乎没有朋友。 一天晚上，Kôichi 在一家酒吧与 Ryota 遇见，Ryota 是来到柏林拜访了一个他在约炮应用程序上“遇见”的德国人。 他对浪漫（和婚姻？）的寄予厚望很快被粉碎，因为德国人只对性有兴趣，甚至不让Ryota留在那里过夜。 这就是为什么Ryota最后在性俱乐部的黑暗房间度过了一夜。 Kôichi由于某种原因让Ryota留在他的公寓。 他们发生性关系。 Ryota几乎每天都会出去，由各种当地男人安排下来，然后回到 Kôichi 的家。 越来越多地接受了一种奇怪的感觉，这种感觉类似于但不是非常沮丧或好奇（无足挂齿，它甚至不接近爱情），Kôichi 逐渐让自己与 Ryota 发生性关系。

Kôichi is a Japanese man living alone in Berlin. He has no job and hardly any friends. One night Kôichi meets Ryota at a bar which is also a sex club. Ryota came to Berlin to visit a German guy whom he had "met" on a dating app. His high hopes for romance (and marriage?) were quickly crushed since the German was only interested in sex, not even letting Ryota stay for the night. That is why Ryota ended up spending the night in the dark room of the sex club. Kôichi for some reason lets Ryota stay at his apartment. They have sex. Ryota goes out almost everyday to get laid by various local men and comes home to Kôichi's. Increasingly caught up with a strange feeling that is akin to but not quite frustration or curiosity (needless to say, it is not even close to love), Kôichi gradually gives himself up to sex with Ryota.