I think the robotized girl had some of her human emotions awaken after seeing her friends turned into pussy circuits and used the power of her new form to blow something up (as was her original mission). The robot core seems to have escaped into space with a few pussy circuits, weakened but not defeated.
I'd like to see an English translation to this soon since the other two were really good.
After being too interested in what was happening, I looked in the comments of the Chinese translation and ended up getting something of a synopsis after putting it through google translate, credit to Diana2046 for this.
"Let me offer an explanation here. In this story, the author left certain concepts and characters unclearly defined—or in many cases, merely glossed over them—relying entirely on the reader to piece things together. However, after a careful and repeated reading, the actual plot turns out to be relatively straightforward. Furthermore, once you understand the story, you'll realize that this title is far more erotic than you might have initially imagined. Essentially, the antagonist—a mechanical lifeform—believes that human females generate a massive amount of energy during orgasm. Consequently, it goes around abducting women, subjecting them to physical modifications, and then petrifying them. Once petrified, their consciousness becomes frozen in time at the very moment of orgasm, allowing the mechanical lifeform to continuously siphon off that immense energy. Shalor's "Plan D" involved allowing herself to be captured so she could transmit a signal to her companions, enabling them to locate the mechanical lifeform and annihilate it in a single strike. However, she was ultimately subjected to the full physical modification and petrification process by the mechanical lifeform, thereby becoming yet another source of energy supply for them. During the final phase of his plan—subduing the Spirit—the villain executed a complete replication of the protagonist group, including their memories. Although he succeeded in capturing the Spirit, the act of fully absorbing the protagonists' memories caused him to lose his sense of self, leaving him unable to distinguish whether he was truly a mechanical lifeform or a human being. Ultimately, the villainous mechanical lifeform was defeated and destroyed by J, a childcare robot. Prior to becoming a childcare robot, J belonged to a collective of robots dedicated to upholding justice; however, due to various glitches and malfunctions, their mission to uphold justice twisted into a directive to exterminate all sentient life in the universe, resulting in a catastrophic disaster. In the end, that collective of justice-enforcing robots met its own demise. J, however, survived and continued to accompany the protagonist group on their adventures as a childcare robot. Although J successfully eliminated the villain, the process left the protagonists in an irreversible state. Consequently, J placed them inside a rocket and launched them out of the "Dark Reef" sector of space, leaving them to await the day when the descendants of the three thousand crew members—whom Sharol had saved at the very beginning of the story—would discover them and rescue them from their petrified state. This wait could potentially last for thousands, or even tens of thousands, of years. In other words, the protagonist group is destined to remain in a state of perpetual, petrified ecstasy—locked in the throes of climax—for millennia, until someone finally comes to set them free."