A messenger from 5,000 years ago

Koichi was taken in by the Komi family and grew up as a very ordinary high school student. But he was the successor of the "Tower of Babel" which is also written in the Old Testament! Koichi, who had sensed that he would be invited there from his dreams every day, visited the Tower of Babel standing quietly in the desert near Baghdad, despite the opposition of Mr. and Mrs. and his daughter Yumiko...