The trio of goddesses from Asgarðr have recently become curious about summer and the beach, and why mortals appreciate them so much, and now, with the help of their summoner, they will discover the answer.

The main conflict is a war between the nations of Askr and Embla. You, the Summoner, aid the Kingdom of Askr and its Order of Heroes, whose members include Commander Anna, Prince Alfonse, and Princess Sharena. You are also the Order of Heroes' Tactician. Your primary weapon is Breidablik, a white and gold pistol-like object with the unique ability to summon heroes from other worlds.