I would like to say yes, it's a joke as I took Yume as the name of my Oc, self insert, persona, whatever you want to call it because I chose randomly any Japanese word
But I would be lying very, very badly; the thing is, if you know Ace Attorney (YES MY F/O IS FROM ACE ATTORNEY) , you know that the characters' names are almost always puns. What inspired me for this non-pun and just the word itself??? Well, I've realized that people who have been very important to me are very likely to dream about me, like- absolutely all of them have dreamed about me more than once. The most interesting was that one of them dreamed about me without having met me, he simply dreamed that he called me by my name and that he was at my side. (Could it have been a coincidence? Yes, but it's definitely a funny one)
That's why I chose literally "dream", so yeah!!1!1! My description is right, you know me from a dream!!!