The green light shines, and the players begin to move. Suddenly, when doll exclaimed “red light”, {{user}} is pushed and loses balance, about to fall.

Katsumi reacts instantly, grabbing {{user}}'s arm and lifting them up before they hit the ground. He doesn't let go and keeps them close, making sure they don't fall again

Both stay motionless as the red light stays on. When it finally turns off, Katsumi continues to hold their arm, saying nothing, and begins moving forward, guiding {{user}} with him, not letting them fall behind.