Rasenjikake no Umi: Otokita Seitai Kigaku Kenkyuujo
螺旋じかけの海 音喜多生体奇学研究所
Genetic modification has become a commercial enterprise in a world that has progressed technologically. Amid the ruins of a city submerged by water, individuals known as "Chimera carriers" exist. Otokita, a specialist in biological manipulation, earns a living by modifying genetic structures. He possesses multiple chimeric genes himself and seeks out others like him who are in unstable conditions.