閃電の守護騎士ニィナ

The reprieve from war is brief.
Gill's activities have flustered another spiritbeast army, and there is news
that they are about to attack the next seal ahead of him.
"Piddling whelps," the commander chuckled. "I'll show them how it's done!"
"What do you mean, sir......"
"Listen, my army! We go to battle! Now's your chance to raise the honor of the dragon tribe to new heights!"

The battlefield is Izunoe, the land that sealed the beast king's left middle finger.
It's protected by Guardian of Lightning Nina, blessed by the gods of thunder.

Nina fights to defend her honor, Gill to increase his own.
Good and evil are tossed about by the bloodlines of history, pulsing on a new battlefield.

[From DLSite English]