某天成为公主.

目を開けるとお姫様になってしまった！When I opened my eyes, I had become a princess! But out of all the characters from this romance novel to be reborn into, why must it be the princess whose fate it is to die by the hands of her own blood-related father, the emperor?! If I want to live, I must never enter his sight. However... "Since when did this kind of scumbag start living in my castle?" Without a single tear to shed nor a drop of blood to spill, that cruel and cold emperor, Claude! Will I, the Princess Athanasia who was caught by him, survive? "I... What should I do..."