Wei Ran, a college graduate, was accidentally led into a world he never thought existed by a cat. When he was trying to find a way to return home, he learned that the only train that could take him back to the human world would only arrive in half a year. He could only temporarily live in the shop run by Mao Mao Yaya - Guaixiang Sale. Just when life seemed to be settling down, Wei Ran unexpectedly discovered that no matter where he went, dragon scales would appear. And every time the dragon scales appear, it causes completely different strange effects...

Three years since the end of their intergalactic excursion, both Lafiel Abriel and Jinto Linn have reunited; Lafiel as the captain of the attack ship Basroil and Jinto as her supply officer. The restart of the war between the Abh Empire and the Triple Alliance thrusts the inexperienced duo into the forefront of the deadly conflict. As the catastrophic battle between pure humankind and their greatest creation, the Abh, rages on, both sides accept that their conflict is not merely about territory, but about settling the inherent differences between themselves.

Mao Lan continues growing into her path in life through what she learns while fighting. Her grandfather thinks that she has grown complacent and decides to train an adversary for her next Prime Mat appearance. Training with her friends and companions Mao Lan slowly advances through life. (Source: AniDB)

War rages between two neighboring countries, but one side has an ace up their sleeve: an ancient dragon bound by a pact to protect the nation. Despite these overpowering creatures being capable of leveling entire battlefields, they are rendered useless by cavities. And so, a special unit—the dragon dentists—has the important duty of caring for the dragon's teeth. Nonoko Kishii was the only one of many brave volunteers who survived a recent round of recruitment; in order to join the dragon dentists, one has to witness their future demise and accept it without a fight. Knowing the exact circumstances of their fated ends, the dragon dentists devote themselves to their work. One day, they gain a new member who did not undergo the test: Bernard "Bel" Octavius, a young enemy officer killed by his own men and revived by the dragon's teeth. Despite his appearance being an omen of a great disaster, he is placed under the care of Nonoko as a dentist-in-training. Will Bel come around to the dragon dentists' attitudes toward death and help them face the painful future that is to come? [Written by MAL Rewrite]