Da Vinci’s telling me that this lady is manifesting as a servant. Her name is Shiki Ryougi, from the Garden of Sinners. From her skillset, it looks like she’s an arts-based assassin, with good generation stats/crit damage bolstered with the NP prop Ying Yang, good survivability through Mind’s Eye (False), and a strong instant-kill, defense ignoring, Arts NP. Her signature skill, Mystic Eyes of Death Perception not only boosts arts performance, but increases the chance of instant-kill and pierces invulnerability, allowing her to hit most anything. It really does seem like she can kill servants! Overall, a very solid servant herself, and she joins us for free!