Also, the user might be into doujinshi or other fan-made content, so include where to find that. However, be cautious about linking to unofficial sites.

Putting this together, the user probably wants a guide that includes cat-related content within the Milky Holmes universe, focusing on Mari and Hoshizawa, perhaps involving the DMC22 fan club, and "extreme" and "Gokkun" might relate to specific merchandise or events, like a more explicit or intense version of the characters.

Wait, Milky Holmes is a Japanese manga/anime that's a soft parody of the Sherlock Holmes series. The main characters are Mari, Mew, Shira, and Hoshizawa. Each has their own traits. "Gokkun" sounds like the Japanese name for Sherlock Holmes, which is sometimes called Gokkon. But maybe they're referring to a specific sub-group or event.