Konyaku Haki ga Mokuhyou desu!  

Im Calling Off This Engagement!, 婚約破棄が目標です！

Celenzia wakes up from a head injury with recollections of her past existence. She has led a sheltered lifestyle as an aristocratic maiden. Armed with her prior experiences and newfound audacity, she successfully ends her engagement to her unfaithful fiancé by catching him in the act. Although now liberated, Celenzia must confront the complications that arise from Albert's involvement in her romantic entanglements. Despite her determination to chart her own course and select her own love life, things do not proceed as planned.

Konyaku Haki ga Mokuhyou desu! has been published digitally in English as Im Calling Off This Engagement! by Renta!