As she was busy bullying the honour student with the power of light magic, Maria Campbell, along with her friends, the fifteen-year-old daughter of a Duke Katarina Claes suddenly hit her head and remembered her previous life.

Thanks to those memories, Katarina realized that she was actually the villainess of an otome game that she had played in her previous life, with a struggle to avoid the destruction flags that would lead to her doom awaiting her...

Except, there's not even a year left before her destruction end!? The story of Katarina, who is on the verge of her demise, begins now...!

Katarina Claes, the eight-year-old daughter of a duke, recovered her past memories when she was hit on the head by a rock. In a feverish nightmare, in which the prince's fiancee was determined, she have realized that this exactly like an otome game from her previous life.
So, she have turned into a villain that interferes with the romance of capture targets—if the heroine got a happy end, Katarina would be exiled, but if the heroine got a bad end, Katarina would be killed.
With no happy ending waiting for her at the end of the road, Katarina somehow have to avoid destruction and reach old age peacefully!