Hydra reacts to Hajime's bullets

Bang! “Crimson Javelin!” A burning spear and speeding bullet raced
toward the white head.
But just before they hit their target, the yellow head put itself in the
line of fire and reared like a cobra. It took both Hajime’s bullet and Yue’s
Crimson Javelin head on. It survived both the impact of a bullet and the
heat of the explosion completely unscathed, and gazed coldly down at
the two creatures below it.