Ansatsu Koukyuu: Ansatsu Jokan Karin wa Yuttari Ikitai

Karin's father is the most vicious and feared politician in the emperor's court, which made her an outcast amongst her peers. She became an apprentice lady-in-waiting, hoping to find friends in the ladies of the Imperial Court. But she found herself using her assassin's skills to protect the lonely young emperor instead. Will Karin finally be able to make a friend? (Source: Big Comic Bros, translated)