"I never wanted to be born as an assassin…" Mira, once hailed as the strongest assassin, meets her end at the hands of her rival—a noble girl knight—while burdened with deep regret. But when she opens her eyes again, she finds herself reincarnated as a noble’s daughter with the same name, one year after her death…!? Determined to live quietly and avoid exposing her past as an assassin, Mira tries to keep a low profile. However, she gradually becomes fascinated by a life completely opposite to her previous one—a life where she protects others. With a new dream of becoming a soldier, her second life begins! A reincarnation tale of a rule-breaking former assassin rewriting her destiny!