Nu: Carnival Bliss

Long ago, to calm the elemental spirits causing chaos across the Klein Continent, Grand Sorcerer Huey placed elemental gemstones capable of regulating nature in five altars, protecting them with magic seals. Every decade, Huey would take his clan members to visit the altars to maintain the gemstones. However, twenty years ago, Huey vanished. With no one to regulate the gemstones, the equilibrium was slowly lost, leading to natural disasters and the spread of the Dead Zone. That's when Huey's familiars summoned the main character from another world: Eiden.

Following his arrival on the Klein Continent, Eiden assumes the mission of the vanished Grand Sorcerer. He learns to regulate his essence—similar to Huey's—and engages in "intimate exchanges" with the clan members—trying to grasp essence—to release the seal of the neon gemstone and restore its power.