So is this what it means to have roommates now?! Office worker Rinko, 24, lives alone and is secretly an otaku. One day, her apartment gets connected to the two neighboring rooms through a "hole" in the wall. In the room on the left is a fresh-faced yet mysterious guy who is overly-sweet to Rinko. The room on the right is occupied by a guy with violent tendencies who is similarly mysterious... But wait! "I... I think I know him!" Rinko's only source of solitude, her apartment, has been turned upside down. Now, every day is full of heart-pounding surprises!

Deep beneath the surface of Southern Cross Isle, a mysterious organization known as the Glittering Crux Brigade frequently gathers in their underground fortress. The group is particularly interested in "Cybodies," stone giants which can transform into massive fighting humanoids but only in a realm known as "Zero Time." By finding and shattering the seals of the island's four seal maidens, Glittering Crux hopes to break free of Zero Time and use the Cybodies anywhere they please. One night, a young man named Takuto Tsunashi washes up on the island's shore and is rescued by Sugata Shindou and his fiancée Wako Agemaki, one of the island's seal maidens. After he awakens, Takuto quickly befriends the two and proceeds to enroll at the local academy, where many of his fellow students are secretly members of Glittering Crux. However, Takuto holds a secret: when in Zero Time, he can utilize a Cybody of his own—the Tauburn. In the forthcoming battle, Takuto and the Tauburn will be the key to preventing Glittering Crux from shattering Wako's seal and realizing its nefarious ambitions.

Koichi and his sister Yuki befriend Hanaguro, a swan who has flown to Japan from Siberia. Hanaguro is attacked by a dog, and the cowardly Koichi flees, but that night he has a dream in which he is whisked away to the Kingdom of Snow Prince, where he finds the bravery to help the other swans.

It is the thirty-first century. Ulysses killed the giant Cyclops when he rescued the children and his son, Telemachus. But the ancient gods of Olympus are angry and threaten a terrible revenge: Ulysses is sentenced to travel through the universe of Olympus with a frozen crew on a quest to find the Kingdom of Hades. Only when he has found the Kingdom of Hades will his crew be free of their curse and he will be able to return to Earth and to his beloved Penelope.