Murder Princess / Sekihiko Inui

It is the year 672, in the Cyndina Era. Alita is the princess of the kingdom of Forland – a kingdom filled with dark secrets, which tend to attract the attention of friend and foe alike. After the evil scientist Dr. Akamashi infiltrates Forland and massacres all of the nobles, Alita escapes and literally runs into a bounty hunter named Falis — an action which will change her life forever. For Alita and Falis inadvertently switched bodies, and now, Falis must take up the role of the princess to fight for the kingdom and protect its citizens. In exchange, Alita (the real princess) will give up her body, soul, and the kingdom to Falis. What dark secrets does Forland hide, and what will be the fate of the new Princess Alita?