Hime Rape Jouyaku ~ Naze Hime wa Seishori Benki ni Natte mo Tiara o Hazusou to Shinai no Ka?

After her country was defeated, fallen princess Lufia was ravaged in front of her people. The enemy was unspeakably cruel. The princess fell into despair. Her own beloved nation despised her and exploited her body. Yet she never removed her crown. It was a promise she'd made... How deeply will Lufia be humiliated before she gives in?