Isn't this kind of a dick move by Nijisanji? They know there's only one famous character named Reimu. They know that they have the sway in the industry so by debuting someone named Reimu they are going to permanently destroy the search results and replace that Reimu with their own Reimu. People complain about Hololive using aggressive tactics but I've never seen them straight up try and ruin a name like this. There are a million names they could use that are common enough to not ruin anything, or they could even make up a new one, but no, of all names, they just had to use this one.