The swarm got a little too close for his liking, hovering overhead like swarming locusts. If Lelouch raised his arm any further than this they’d feel him and crush him. Which meant he had no choice but to aim for the one part of the body he could reliably hit, and hope it gave him the time to recover.

But it meant he would have one bullet left. Just one. Which meant he had to make it count because all he had on him was this gun and -

No, that wasn’t quite true. He had something else. Something a clock on the wall told him could either kill him or save him… He placed that item on the ground knowing that a certain person would do a certain thing, unknowingly saving his life in the process. But before then, he had to escape this situation.

Hoping on a miracle, Lelouch pulled the trigger.

[...]

<Clovis>

And then, like a miracle he heard it. An innocuous sound. A familiar sound that heralded victory. A ringtone. The assassin had left his phone on. Truly, such a simple mind.

This time he would risk no escape. This time, he walled off that section of the room. Nowhere to run. Nowhere to hide. He drew to his full height, shaking from the pain and allowed himself a smile of victory moments before he was shot in the back.

It was worse than the leg, and he knew immediately because he let out a gasp of pain. It felt like his chest had caught fire. All he could do was crumple to the ground while the outlined figure of his killer strode past and picked up the still ringing phone. It left a stinging clarity in Clovis’ mind: He had deliberately left it there as a trap, but how could he have known it was going to ring? If he used the phone in the room, it would have easily led to his arrest later on. So how -

“Hello,” the voice said. “Ah! Sorry, sorry. I didn’t mean to worry you. Yes. I should have called earlier, unfortunately I got rather wrapped up in something else. Don’t worry about it, I’ll be home in a few hours. No, no. Everything is fine, really! See you then, little sister.”

Little sister. Of course. The bond between siblings led him to know that she would surely call at this time. Because of course a little sister would be worried about their big brother if they stayed out late, with no idea

-Lulu's Bizarre Rebellion Chapter 3