Stage or studio scene shows a nude adult woman standing with Japanese captions over the frame and equipment or colorful lights behind her. Likely next moment: she shifts her stance while the segment continues.
Sou-san @smile_rooms

爽老师的鬼连chan ～Chapter2～ 让一个清纯又非常可爱、有男友的女孩站在镜子前，插入那个会吸的东西，挑战她能连续高潮多少次，到了连续第27次时终于撑不住， “投降、投降!!” 面对这样喊叫的她，温柔的爽老师…