I've fallen in Love with an AlienBoku wa Uchuujin ni Koi o Shita; Me enamoré de una extraterrestre.; Я влюбился в пришельца ; เมื่อผมตกหลุมรักยัยต่างดาว; ボクは宇宙人に恋をした。 ; 我和宇宙人恋爱啦; 나는 우주인과 사랑에 빠졌다

Tomonaga Kairi is the top student in his year and a skeptic when it comes to the universe. But one day, he accidentally gets involved with the eccentric Nanbu-senpai, president and the only member of the Space Research Club. What will happen to Tomonaga when she tries to get him to join her club before it gets abolished...!?