From the day his parents named him, Nasa Yuzaki has felt connected to outer space...whether he likes it or not. His efforts to outperform the space program veer off course when an accident introduces him to Tsukasa, a mysterious girl with strange powers. Is she an alien, a moon goddess, or something else? Since she insists on marrying him, Nasa will have plenty of chances to find out!

Touring the beautiful Kyoto area, Nasa and Tsukasa find plenty of opportunities for romance. Selfies! Snuggling! Swordplay! They'd better enjoy every minute, because a shattering surprise awaits them at home in Tokyo. Where will the newlyweds go when their cozy (i.e., cramped) apartment is no more?