The Rainbow Stone Train crosses straight through a vast continent. Newbie train crew member Toy is posted to work in Morning, the train carriage which charges the cheapest ticket prices!"
Torquay Toy (the nephew of the head-conductor of Morning) wants to work on a train powered by rainbow stone, but ends up working on the "Morning" section, which is reserved for the lowest class passengers.
(Source: M-U)

History isn't Tokidoki's strong subject. He's even forced to do make-up work at a high-tech history museum to bring up his failing grades. After losing an eye to a virtual reality monster in an Edo-period simulation, he finds himself unable to leave the game. Could it be real?

Nozomu wants to be a writer, but for now she's just trying to find the right story. Walking home from school one day she bumps into some guys, and even though it's an accident, they hassle her until she is saved by a mysterious man. His name is Ichiyou, and he is searching for Gods. Nozomu sends him along his way only to be approached by Tenkō, who is searching for his Master. Nozomu reunites Ichiyou and Tenkō (and their abusive relationship), and gets a view of another world. The two men are on a journey to find the Gods. The world that was once supported by four evil Gods, has fallen to a crisis. Using song and dance, it is up to the kashikans to bring back the Gods which fled from their confinement…

The locomotive called the Rainbow Stone Train runs, not on electricity, but on the energy source called, "Rainbow Stone." Inside, the train is split; from the extremely high class Evening carriage, to the average Afternoon carriage, and finally, to the cheap, but cramped and noisy, Morning carriage.
Employed as a crew member of Morning, Toky Towy struggles daily by the side of his strict superior while going through various encounters and farewells again and again.
(Source: M-U)