Shipwreck survivors are found on Beiru Island (Infanto tô), which was previously used for atomic tests. The interior is amazingly free of radiation effects, and they believe that they were protected by a special juice that was given to them by the island's residents. A joint expedition of Rolisican and Japanese scientists explores Beiru and discovers many curious things, including two women only one foot (30 centimeters) high. Unscrupulous expedition leader Clark Nelson abducts the women and puts them in a vaudeville show. But their sweet singing contains a telepathic cry for help to Mothra, a gigantic moth that is worshiped as a deity by the island people. The giant monster heeds the call of the women and heads to Tokyo, wreaking destruction in its path.
海洋冒険小説作家としても有名な谷恒生の原作で、オカルトホラー時代小説『神州魑魅（すだま）変異聞 寒月一凍悪霊斬り』のOVA化作品。時は江戸の元禄時代。若き絵草子作者にして華麗な鉄扇技の遣い手・寒月一凍は、江戸で評判の奇術師・黄昏陰斎の演芸を楽しんだ。だがその帰り、一凍は浪人に襲われる女性の窮地を救い、その時に渡された一枚のタロットカードから更なる事件に巻き込まれる。一凍の眼前に広がる、乙女たちの連続神隠し事件の真相とは……。本作の原作は、同じ原作者の時代ホラーアクション『神州魑魅変』からのスピンオフ。正編の方も、本アニメと同じマジックバスによりOVA化されている。こちらの『寒月一凍悪霊斬り』は正編の名脇役・一凍を主役に据えた、オカルト探偵アクションもの。
再び大海原に飛び出した 千空達の旅路をお楽しみに‼
