Attention!：This work is translated by Google Translate for episode 1 to 3, and localized with INKR Studio and proofread by Japan Visualmedia Translation Academy for episode 4 and after.

After discovering that her older sister, who she adores, has been given the role of villain, a duke's daughter will do whatever it takes to prevent her sister's pre-ordained unhappy ending!
An innovative time-loop fantasy fueled by sisterly love!