Kenshin watched her carefully, impressed that she was not squeamish at the thought of of drinking his blood. He supposed her physical state was indication that she had lived a difficult life under her previous master, but drinking vampire blood was not a practice that all were familiar or comfortable with doing.
He was old, and his blood was potent. Yellow eyes watched her drink from him, silently curious as to what could've possessed her previous master to harm her in any lasting way such as he had. Though he displayed no sign of emotion in his practice as an assassin nor outwardly in his day to day tasks, he saw little practical use in hurting a slave that was to serve in such a lasting way. He supposed some saw that right to break and hurt as the slave's purpose, but Kenshin had been raised practically to include a need to be mentally and physically whole to achieve maximum usefulness. For one who considered himself more a tool than a master, it remained logic he applied to himself as well. To be an effective master, one that already shaped into a different sort than Kylo Ren or the other Knights, he would require time to orient himself to such a notion.
He drew his wrist from her when she'd healed, the wound closing up rapidly. Looking down at her, the vampire waited a moment before asking, "That was sufficient?"