"； Do you want to do this; Fatal temptation... Challenge Game : The floral artist Ae-ran (Vicky) and forensic investigator Min ho (Choi Ryeong) from the prosecutor's office both have a family that everyone wants. However, Min ho cannot control her sleeping time, so Ae-ran begins a challenge game in which she seduces unfamiliar men and has sex with them. One day, Ae-ran and Min ho met Alex (played by Choi Hyun ho) at a tango caf é. Alex is interested in and approaches Ae ran, who is more handsome than her husband Alex. Min ho later witnessed their actions and was very angry when he found out that the man Ae ran was luring was Alex. Min ho felt nervous because he realized that Alex was not just a competition partner, so he came to him for a reason. Min ho tried to get rid of Alex, but Alex even grabbed Ae ran and Min ho, feeling the release. The game they started is turning into a disaster...
佐佐木美代（Shida Futurai配音）是一个高中二年级的女孩，她总是把自己的真实情感藏在心里。因此，美代被她周围的朋友称为“无限神秘的人”。事实上，美黛是一个非常关心别人意见的女孩，总是关心周围的人。
然而，他们与第一次前往太空的地球儿童“大洋洲”、“美音乃”和“博士”一起，卷入了空间站与彗星的碰撞事故。在一个与成年人隔离、与互联网隔绝的封闭空间里，有时相互冲突和帮助的孩子必须共同面对各种困难，如减压、EVA（太空游泳）和微型机械失控。
