Synopsis: 

Three months after his adventure in Flonyard, Shinku gets summoned back once again, this time bringing Rebecca with him. His cousin and rival athlete Nanami, also is summoned to Flonyard as Galette's Hero. The First Princess of the Principality of Pastillage, Couver, leads her squirrel-like faction into the battlefield as well with the intention of scouting Rebecca to become their hero.

(Source: Wikipedia)