Reincarnated as a Rat

After waking up in a Rat's body, Dave found out that he's reincarnated in world similar to the tales told in story books. And by the look of it, he was reincarnated at late stage in the story where the situation is bad for the Mystic Creatures. He was granted a system and a mission to turn things around for the Mystic Creatures before he can return home. Join Dave in his quest to save the IGNIS KINGDOM.