Nasa's most treasured memory is of the night Tsukasa saved his life. But it turns out there are some crucial gaps in his recollection, including a fateful promise and a forgotten kiss. As he searches for answers, he discovers amazing things about his wife and a legend that stretches back over a thousand years. Can their marriage survive the full truth?

Volume 15 of the Fly Me to the Moon manga series by Kenjiro Hata.