There are no nerves to be lost on her end. Creatures don't feel fear. They just act. Li is not nervous. Right now she is not anything but a weapon, existing in service to the mission. She moves at top speed and finds herself positioned beside Donatello, drawing a knife to act as back-up aid when it's needed - because it's not a matter of if, it's a matter of when.

Before they can even get to that point, though, Donatello does something she can't quite process and then, abruptly, everything is various degrees of singed. Thankfully not everything is actually on fire, since the cars and buildings aren't flammable, but the people definitely are. Something about the spores seems to still be effecting their judgment, since being set on fire would fell any normal person and these people are, rather than making any move to put themselves out, still encroaching. Li slides into position, balancing the weight of her feet on her toes as she gets ready to move at any moment, unable to predict how this will go.

A figure staggers forward. Li darts out, quick as lightning, slips under and around his fiery arms, and once she's behind him it's over in a flash of metal across his neck before she kicks him over and promptly returns to Donatello's side. They're not going to get through this quickly, but she has the endurance to go through them all eventually, especially with Donatello's help. The light in her eyes is at peak brightness, red overtaking the black of pupils entirely. The odds aren't phasing her. That's not new, for her. What Donatello might notice is new is the silence, the stillness, the unnatural lack of an expression.

She waits for orders or an attack. She does not respond to words.

She is a Creature, not a companion.