スラバヤ殿下

Japanese part-time student who prepares to interpret His Highness Surabaya's words

Midori Miyama

Yuzo Tanigawa

Engineer at the Applied Atomic Energy Research Institute

Applied Atomic Energy Research Institute Worker with a Tohoku Accent

Spy Joe

Nahoe Minegishi

Grandmother Okin

Kyutaro Nagasogabe/Eiji Nagasogabe

Spy Zolkov