Denpa Onna and Seishun Otoko SF

I, Niwa Makoto, used to attend a high school in the countryside. The girls in my class were all familiar faces, and most of them dressed pretty drably. Now that I've left my rural high school for one in the city, I'm working on boosting my Youth Points. Good things happening with a cute girl will raise my Youth Points, while the opposite will make them drop.

After starting at a city high school, I naturally met some cute girls in my class, which raised my Youth Points quite a bit. At this rate, my dream of a thrilling high school life in the city might actually come true.

Come to think of it, my parents' jobs mean no one's home, so I can stay with my aunt in the city and attend school here.

The moment I stepped into my aunt's house... Wait, Auntie, didn't you say you lived alone? Why is there a girl lying on the floor, wrapped in a futon and looking like a tube of fish cake? What? She's my cousin, and her name is Touwa Erio? Her incomprehensible, spacey behavior has made my Youth Points plummet. Hm, but when my cousin occasionally slips out of her futon, it turns out she's a beautiful girl with a strange aura all around her.

Will I be able to achieve my plan to boost my Youth Points during high school? The story begins here, and after the protagonist discovers the truth behind his cousin becoming a space case, the story reaches its climax.