Please read the guide...
"I've included this topic after seeing an influx of comment requests for games which are simply not worth uncensoring. Usually because it's a 2D game with baked textures."
"Unity 3D architecture being our primary focus. I'd say 75% of all Unity 2D games cannot be (easily) uncensored. If you are here to uncensor a 2D game, please be prepared for the work involved with the task. If it's not a shader, it's all in the textures."
Bottom line, any modern 2D Unity games from dlsite are going to have baked textures. Dlsite is cracking down on raw assets, requiring developers to censor anything found inside the game archives - even if it requires specialized tools to view in the first place. Considering this game was just released, I can almost guarantee there is a baked mosaic due to this new policy.
If you want to test this theory, open the game folder using Unity Asset Studio, and view the textures. Normally 2D games will have their animation artwork in a sheet labeled as "texture_0", "texture_1" and so on. But UAS allows you to view the textures without extracting, so they should be easy to find. If the textures are censored, then your quest is basically done for.