This title is a serialization of volume 4 chapter 2 of Akuyaku Reijou Desuga, Shiawase ni Natte Misemasu wa! Said oneshot is chapter 1 of this series.

Princess Evienrose, despite advocating fiercely for the rights of the homunculi rebels, now awaits death at their hands… that is until she is poisoned by her own sister! Awakening eight years in the past, ...