That does settle it, then, doesn't it. Although he is alarmed, Saitou is well aware panicking will only make things worse, especially for Chizuru. He had turned to look with her at the sounds, eyeing narrowing as he attempts to find the source of activating this before it stops moving, No such luck which makes him tense and simply go to turn once more and stare up at the scythe with the blood (that's going to suggest a problem most certainly) but the lights fade before he can get a good look. With the only opening lighted he realizes this isn't just an ordinary trap set up, that they're more than likely being intentionally led...but, even so what choice is there ?

And even if not, even though he would never make Chizuru take the same risks, He would do almost anything to save Souji's life. "I'm here," he says quietly to her before going to take a step forward. "We would do best to move quickly."