What is what anime is nezumi from?

As an AI language model, I do not have access to the latest information or knowledge in real-time. However, based on my last crawled data and general knowledge, Nezumi is a character from the anime series "No.6." It is a science-fiction series with elements of dystopia and romance, which follows the story of a perfect city-state named "No.6" and two young men who get caught in political conspiracies. Nezumi is one of the main protagonists, a survivor of the West Block, and a skilled fighter who joins forces with the other protagonist, Shion, to uncover the truth behind No.6's secrets.