Sci-fi action drama, set in year 2117. Future metropol 'Zen City' is home to two classes. The elite, who are allowed to gene manipulate themselves to better humans and the rest of the people who are forbidden to manipulate. People who have upgraded genes are called 'Geners'. Those who are not allowed but yet become Geners - 'unlawful Geners' - are considered 'illegally armed' by their bare increased physical abilities and must attend frequent 'relax controls' to be drugged down to 'normal'. Some follow, some don't... they hide in the underwater system of Zen city.