“Tonikaku Kawaii” (Fly Me to The Moon) by Kenjiro Hata has 5.5 million copies in circulation worldwide.
Synopsis:
“Tonikaku Kawaii” (also known as “Fly Me to the Moon”) is a romantic comedy manga series written and illustrated by Kenjiro Hata. The series has also been adapted into an anime by Seven Arcs.
The protagonist, Nasa, is a highly intelligent and ambitious young man whose unusual name often makes people think of the space agency NASA. One snowy evening, he encounters a beautiful girl named Tsukasa Tsukuyomi. Distracted by her beauty, Nasa gets hit by a truck. However, Tsukasa saves his life and he immediately confesses his love for her.
The mysterious girl who saves Nasa’s life agrees to go out with him on the condition that they get married. She disappears after this brief encounter, only to reappear at Nasaβs doorstep on his 18th birthday, ready to fulfill her promise.