[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.] This is a custom video from Xiaoyu. There are three challenges for her. Challenge 1: Breath holding underwater. Xiaoyu will put her head underwater as long as possible. To increase the difficulty, her hands are bound behind her back, and she is wearing a ball gag. The gag will make her hard to keep water out of her mouth when her head is underwater, and will also make her hard to catch her breath when her head is above water. Every full minute of breath holding will decrease the waiting time of the final challenge by 10 seconds. She can try multiple times, but only the last attempt will be counted (not the best attempt). Challenge 2: Crawling under dog bondage with a big-pocket breathplay hood. The hood has no breathing holes. She will crawl in the hotel room, and every lap will reduce the waiting time of the final challenge by 5 second. Again, retries are allowed, but only the last one will be counted. Final challenge: The famous escape game. Xiaoyu will be tied to a chair with the same breathplay hood on her head. A collar with a padlock is then put around her neck to lock the hood. She has to wait 3 minutes minus the award time gained in the first two challenges, before she is allowed to struggle, free her hands, and unlock herself. I don’t have to say anything about how the challenges went actually. Watch them yourself, they are extraordinary! Especially for the final challenge, she made two attempts, neither of which went close to her own expectation. It went towards a dramatic ending with a real blackout again! Of course, Xiaoyu has been all right soon after the challenges.