In reality, it is likely a group of crypt-zoologists or ARG designers having fun at the expense of journalists. They have successfully created an unfalsifiable mystery. If you find nothing, they say you "didn't crawl deep enough." If you find a decryption key, you are part of the story.
When we connect all the dots, the image is complete and deeply concerning: The query is a specific, targeted search for content that likely exists on the anonymous Tor network. This content appears to be a series or collection (identified by "FU10") that romanticizes or depicts the act of "night crawling" (Yobai) specifically involving individuals aged 17, 18, and 19. The inclusion of age 17 pushes this content into the category of Child Sexual Abuse Material (CSAM). fu10 night crawling 17 18 19 tor exclusive