Takagi Haru was a normal university student with an abnormal passion for stargazing. His average life changed, however, when an alien princess from another planet crash-landed on the roof of his university at night and declared her love for him. Haru thought that Ena and her wacky antics were all he had to deal with, but he then discovers that his friend, Hiyori, is hiding a huge secret of her own. Hiyori has to leave Haru and Ena, but Haru wants to reunite with her. Haru misses Hiyori, and so embarks upon a journey across the galaxy to see her: a journey he accomplishes with his wannabe alien-bride Ena and Ena’s trusty maid sidekick Revi. Though Haru has always loved stargazing, he’s never travelled amongst them before. What will happen during his adventure, and will he be able to rescue Hiyori? He’s going to do his very best – but things would be a lot easier if Revi would stop flirting with him! [From Steam]