Ever since she was a child, 15-year-old Umika Konohoshi has been captivated by aliens, dreaming of one day traveling to outer space to befriend them. Regrettably, this obsession has led her classmates to view her as strange, worsening her battle with severe social anxiety. Still, Umika’s enthusiasm for extraterrestrials remains strong, and she firmly believes her true calling lies beyond Earth. On her first day of high school, Umika’s wish to meet an alien appears to finally come true when she meets Yuu Akeuchi—a classmate who says she crash-landed on Earth with no memory of her past. Umika attempts to take this chance to become friends with Yuu, but her lack of self-assurance gets in the way. Noticing Umika’s discomfort, Yuu suddenly employs a mysterious power to probe deep into her mind, igniting a friendship that might just help Umika achieve her dreams.