How many requiem arrows are there?

Could you please clarify what you mean by "requiem arrows"? Are you referring to a specific game, anime, or some other fictional context? As a professional practitioner in the field of cryptocurrency and finance, I am not familiar with this term in a direct professional context. However, if you are asking about a numerical quantity within a game or story, the answer would depend on the specific rules or storyline. Without further context, I cannot accurately provide a response to your question.