This indicates that the original Japanese work has been translated into English by fan-translators and that the digital mosaic censorship (standard in official Japanese adult releases) has been digitally removed or was not present in this specific version.
One evening, as Kaito sat in the lab's common area, engaging with other participants and the team, Mayuri appeared with a warm smile. "The true experiment was not in what we've done to you physically or mentally," Mayuri said, "but in how you've connected with others, found joy in the journey, and begun to see the world with new eyes."
A helpful review for Mayuri-sama no Jintai Jikkenshitsu (Mayuri-sama's Body Laboratory) by Circle Eden
The game is a "pet-sim" or "laboratory" style interaction where players use Mayuri Kurotsuchi to perform various "experiments" on other characters from the series, such as Orihime Inoue, Rukia Kuchiki, and Sui-Feng. Access & Compatibility