Deep under the ground of the capital city of Tokyo exists a forgotten sunless world called TOKYO UNDERGROUND. From this world, two mysterious figures, Ruri Sarasa and Chelsea Rorec, emerge and find a temporary safe haven in the home of Rumina Asagi. Ruri is an important figure in the underworld, known as the "Maiden of Life", and Chelsea is her bodyguard, who aided her in escape. Ruri and Chelsea have been pursued by evil forces, who have tracked them to Rumina's doorstep! Ruri's power awakens Rumina's latent Wind Powers, and armed with his new strength, he joins Chelsea in protecting Ruri from the evil forces of the Underground. Episodes: 1. The Surface - The Fateful Encounter 2. Resurrection - The Maiden of Life 3. The Awakening - When the Wind Blows 4. Full Moon - Ruri's Wish 5. Fight - The Two Water Users