Stressed married researcher Marie returns to the sterile laboratory for another round of secret passion with sponsor Leon, her big boobs on full display during their heated affair that includes the sensuality of a blow job and the thrill of creampie. As frustrations melt away in their encounters, a maid-inspired homunculus quietly stirs from its unresponsive state. This artificial being starts to observe and learn from the couple's intimate moments, hinting at her own awakening desires in this hentai episode.