The Rolisican Embassy responds by co-sponsoring a joint Japanese–Rolisican scientific expediction to Infant Island, led by capitalist Clark Nelson. Also on the expedition are radiation specialist Dr. Harada, linguist/anthropologist Shin'ichi Chūjō, and stowaway reporter Fukuda. Chūjō has studied the cultures of islands in the area and ascertained that one of the key hieroglyphs in their written language, a radiant cross-shaped star, translates as "Mothra". There the team discover a vast jungle of mutated flora, a fleeting native tribe, and two young women only twelve inches tall, who save Chujo from being eaten by a vampire plant. The "Shobijin" (small beauties), as Fukuda dubs them, wish their island to be spared further atomic testing. Acknowledging this message, the team returns and conceals these events from the public.