The story begins with Odin commanding Lenneth, the Valkyrie, to descend into the lower world and gather the souls of fallen heroes for the impending battle against Ragnarok. The player takes control of Lenneth as she gathers soldiers, trains them, and prepares for the final conflict.
The gameplay revolves around exploring 2D locations such as dungeons, mansions, and swamps. Lenneth can run, jump, shoot ice crystals, push and pull objects to solve puzzles, and avoid enemies in turn-based battles reminiscent of games like Chrono Cross and SaGaFrontier 2. The battle system allows for combos that can leave enemies defenseless, but defeating them without combos is also possible.
The game's unique chapter system consists of a preset number of periods per action, with the difficulty level affecting the number used. Each period represents time passing, and when all periods have elapsed, the chapter ends. The player must transfer heroes to Valhalla periodically, but has limited time to improve their statistics before the chapter concludes.