[This video was shot with full consent of the model. The model was assured that she can pause or terminate the shooting and be released from any risky circumstances at any moment, by using predefined signals including but not limited to safe-words and safe-moves. WARNING: The video features performance by either professionals or under the supervision of professionals. Do not attempt to recreate any actions similar to the ones that appear in this video. No solo breathplay. NEVER.] Xiaoyu-senpai has contributed another awesome custom video! I don’t have to say much about it. She was doing anaerobic exercises again with sealed plastic bags over her head. Squat kicks, tuck jumps, burpees, and jump squats, these are quite intense exercises. Several targets were set, and she must meet the targets before the bags can be torn open. However, if you watch the video carefully and count how many times she repeated the moves, you will find how she cheated… Well, she told me afterwards that she was not cheating but simply did not have a clear mind to count due to lack of oxygen… but anyway, I decided to punish her, by not releasing her after the last jump squat, and watching her struggling on the floor helplessly until blackout with purple lips. This time her blackout behavior was quite different from the past, probably because it was after intense exercises.