After being betrayed and falsely accused by her fiancé, a duke's daughter dies, but returns to protect the "truly important person" this time! Elze was condemned in front of the nobility and had her engagement broken off by her fiancé, King Anzeum. Furthermore, the only ally she had, the crown prince of a neighbouring country, Lucas, was killed right before her eyes, and she too fell to the depths of despair and lost her life. ...And when she awoke, Elze had returned to the morning when her engagement was broken off! "In my second life, I want to dedicate myself to Lucas, the one who believed in me!" With that determination, Elze takes actions different from her previous life...