Hansode

Warning: Contains ending spoilers for Banana Fish. Pairing: Ash x Eiji

I was reincarnated as Diana, a villainess destined to be the final boss, and I was living with the Ice Duke, with whom I was already in a political marriage, and his daughter, who feared me. My fate was to one day be defeated by my daughter's heroic lover—but I refused! I'll shower my daughter with love, improve my relationship with my husband, and aim to avoid becoming the final boss!! The story of a quirky duchess escaping her villainous status begins in grand style★ (Source: Kadokawa, translated)

After being betrayed by her fiancé, pharmacist Amelie loses her job and her home. She ends up in the forbidden "Monster Forest." She is saved by Cyril, the third prince of a neighboring kingdom, feared as the "Cruel Prince." His gaze, contrary to rumors, is surprisingly straightforward... "I need you." Slowly, her wounded heart begins to heal. And so begins a new story of love and life. (Source: Ichijinsha, translated)