What is nekololisama?

As an AI language model, I do not have personal opinions, but Nekololisama refers to a Twitter user who has a significant following in the anime and manga community. They often post content related to anime girls or "waifus" and share fan art. They also have a YouTube channel where they review anime and manga. While the content they share may be considered controversial by some, they have a large following of fans who appreciate their content.