You are the Grand Marshal of the Lunia Empire. The war against the enemy Candante Empire is increasingly turning against Lunia, and despite your and your loyal confidante Adelaine's best efforts to resist, it is difficult to overcome the overwhelming disparity in troop strength. In this desperate situation, Lillian, the Grand Marshal of Candante, approaches you.
Rumors have circulated that she has been interested in you for some time, and that her personal participation in this war, which she normally avoids, is to see you. As if to prove this is true, she makes you an offer.

Choose. Will you become a dead hero of Lunia, or will you live and become my subordinate? It's not difficult, is it?