July 13, Tokyo, Japan, Roppongi Grand Hotel.
In the large bed room marked "4105," Ji Minghuan was controlling a No. 1 machine, stopped in front of the bathroom sink, holding a disposable toothbrush in his left hand.
While brushing his teeth slowly, he was playing the music game "Piano Tiles 3" on his phone. The challenge level was the highest difficulty, "Frenzy Tap Arena."
However, instead of using his fingers, he was using the restraint belt — this was to train the precision of controlling the restraint belt.
The mirror above the sink reflected his lowered head and focused expression, with the black restraint belt extending from his fingertips, briskly and swiftly tapping the screen, touching every piano tile without missing.
Ji Minghuan picked up the rinsing cup, caught the lip of the cup with his mouth, while his pupils reflected the disappearing black tiles one after another.
