I was skeptical at first, but the evidence is stacking up. She said her new name is Kokoro on July 22nd, and her Reddit account was created July 18th.
Archive for her reddit page
EDIT: Archived each page of her Reddit content on old reddit so it's a bit easier to see.
Page 1 -
Page 2 -
Page 3
A post she made on her own reddit profile has links to other social media. Her
tumblr and
deviantart are completely barren. (both links are archived)
Archive
Her first reddit post is her on r/Osana posting about a (now deleted) tweet by her good friend Akisp4rk.
Archive
Her twitter was also made in July 2020
Archive
and her pinned tweet says she's working on Project RY (another Yansim clone)
Archive
...except she isn't. Screenshots below are courtesy of a good friend, names have been censored to protect anonymity, but the person she's talking to is a project member working with Red, the lead dev of Project RY.

And she's back to using Google Translate again, but for German this time. She also joined the Project Ry community alongside Akisp4rk.
included screenshot:

Translation:
Blue: are you feeling offended by [redacted]'s remarks? [Redacted] asked me about this and i told him it was playfull banter
Smug: not at all
Blue: [thumbs up]
Smug: (It's all good)
["Es ist wirklich gut" is technically correct, but its a really weird way to phrase it]
Here's her new Discord tag.
EDIT: I thought the informant was an artist working on Project RY but I've since been corrected. They're just someone helping out with the game, not actually doing art for it.
Alright fellas, this threads a bit slow so let me speed it up tenfold.
Your friend Smug has been parading as @FurezoHarto on the farms, and as a "coder" named KokoroDev on discord.
This artstyle look familiar to anyone?
View attachment 1582609
Besides this she has : Had a spergout over being called out for not knowing how to code which led to her having a "panic attack", threatened to kill herself over not knowing how to code then said she isn't Yandere Dev. Here are some highlights :
Heres the original code. The file she sent has been attached below. Feel free to compare
By the way, do you have any proof that
@FurezoHarto is also KokoroDev AKA Smugruko?