The luxury liner Tokimaru makes its way from San Francisco to Japan, stopping at each Hawaiian island along the way. 
As Utsumi Osamu sits on the deck enjoying a crossword puzzle, he's approached by a man calling himself Jeffrey Morgan. 
At that same moment, cries of terror erupt from those looking out at the ocean.
the Japanese Navy is developing 
encryption machines
تقوم البحريّة اليابانيّة بتطوير آلات تشفير
el ejército japonés desarrolla máquinas
el ejército japonés desarrolla máquinas
l’armée japonaise développe
un système mécanique
la Marina Giapponese sta sviluppando
os códigos utilizados pela
Marinha Japonesa também