该系列围绕着三个决定踏上旅程的朋友展开，在旅途中，他们将遇到一个陌生人，他将通过这段旅程彻底改变他们的生活。

Emilia, who suffers from a terminal illness, embarks on a journey with her best friend Violeta. On their way they meet Mark, who claims to be an alien on a mission to destroy the planet for considering humanity (and love) a virus. However, Mark begins to doubt his mission falling in love with Emilia.