Osios Valley was once a peaceful haven where creatures and other sentient beings could come together and live in harmony. Kavel, the Demon King, ruled over the valley ensuring peace across the land. However, the evil Demon Warlord Ishugil intends to wreak havoc across Osios Valley using his army of greedy humans from the Wolven Realms. Heyni, the daughter of Demon King Kavel, must journey through the lands to stop Ishugil and his lackeys to ensure the peace of a now war-torn Osios Valley. With her feline companion, Cashu, and many friends she meets along the way, will she have the strength to defend Osios Valley?
