Enna is "the town bike of NijiEN" and Millie is "the town whore of NijiEN".
Millie is inappropriately sexual with all of the male members and is always goading the female members into flirting with the males or discussing their sex lives. Millie always pushes whorishness into the equation.
Here are some examples.
In this stream, Millie has a "date stream" with Kyo where both Enna and Millie do sexual moaning and openly flirting with Kyo.
Millie encouraging Kyo to be lewd, prompting lewd roleplay situation.
>https://www.youtube.com/watch?v=Tt9TUQQsDFo&t=1277Millie prompting Kyo to make lewd comments about Enna
>https://www.youtube.com/watch?v=Tt9TUQQsDFo&t=1624Millie jiggles her boobs for Kyo and moans at him
>https://www.youtube.com/watch?v=Tt9TUQQsDFo&t=1839Millie does orgasm moans for Kyo
>https://www.youtube.com/watch?v=Tt9TUQQsDFo&t=2053Millie suggests sexy singing for Kyo
>https://www.youtube.com/watch?v=Tt9TUQQsDFo&t=3470The point is that it's Millie bringing up the sexual shit all the time, Millie prompting the lewd situations. Probably she lacks any other personality traits.
In this stream Milie basically turns the collab int "whore's night out"
Millie encouraging Reimu to do sexy voices for her chat.
>https://www.youtube.com/watch?v=EVcTD3LTizQ&t=9930Millie starts telling dirty jokes about penises. Enna's reaction.
>https://www.youtube.com/watch?v=EVcTD3LTizQ&t=10112>https://www.youtube.com/watch?v=EVcTD3LTizQ&t=10206Millie encouraging Enna to dress slutty so that random men will hit on her.
>https://www.youtube.com/watch?v=EVcTD3LTizQ&t=10518Asking Enna if she's "an ass person"
>https://www.youtube.com/watch?v=EVcTD3LTizQ&t=10688Millie sending lingerie pics in the discord server, she posed lewdly.
>https://www.youtube.com/watch?v=EVcTD3LTizQ&t=11014Millie says she wants to see Enna naked and go skinny-dipping with her
>https://www.youtube.com/watch?v=EVcTD3LTizQ&t=11290Millie bringing the conversation back to breasts again. (Enna wants to do ass smacking)
>https://www.youtube.com/watch?v=EVcTD3LTizQ&t=11832In this stream, Millie tells Pomu to talk about her underwear in front of Luca, something that seriously damaged Pomu's fanbase.
>https://www.youtube.com/watch?v=rQU-hZKaPMQ&t=9870In this stream Enna and Millie join Luca's 1 million celebration.
Millie is the one calling in, but she brings Enna into the stream to do lewd moans for Luca. This is part of "Millie's humor" doing lewd moans as a "joke". Apparently she had no problem doing it for the enjoyment of a male member.
>https://www.youtube.com/watch?v=mBdDQdCzcTI&t=18987 >https://www.youtube.com/watch?v=mBdDQdCzcTI&t=18775When Luca asks a question about butts, Millie reads between the lines and interprets this as a question for Enna specifically, and brings Enna on to spank her ass for Luca. She then spends several minutes changing around her audio setup just so that Enna can be in the conversation and flirt more with Luca.
>https://www.youtube.com/watch?v=mBdDQdCzcTI&t=18952So you see, Millie is a huge problem. We all have an idea of what Millie is "supposed to be", a rambunctious and chaotic girl filled with creativity and energy. The sad truth of Millie is that she's just a whore. I don't know if she's on drugs or something, but her whorish behavior cannot be gainsaid. She is just a crack whore vtuber.