"Hitokiri" Shoujo, Koushaku Reijou no Goei ni Naru

A skilled swordswoman trained as a bodyguard, Shurine becomes a fugitive after being wrongly accused of trying to kill someone. While in hiding, she encounters Lutecia, a noblewoman facing threats due to a family conflict over leadership. After Lutecia is attacked, Shurine proposes a deal.