The love of functions and derivatives

"Who are you? Why did you kill me?!"

At the critical moment, Function remembered the very socially significant truth in various TV dramas—the villain dies when he talks too much.So he asked the takeaway boy, silently unlocked the phone with his fingerprint with one hand, and pressed the speed dial button.

"You should have died a long time ago!" The delivery boy stopped his hands, rolled his eyes, and said ruthlessly while wearing a mask, as if there was some deep hatred between Function and himself.

The function said that he really didn't know him.

Then a gleam of joy flashed in his heart—he was really fooled.

"I can give you whatever you want!" Function said to the takeaway brother persistently and flexibly, "As long as the big brother lets me live!"

But this time the takeaway boy didn't answer his words, but immediately ran towards the function again with a knife, the dazzling edge cut through the silent night, and passed by the function.

so close.

Function's heartbeat was fast, and the deafening heartbeat lingered in his ears. The violent heartbeat made him doubt whether his heart would burst out of his chest. The increased adrenaline secreted due to nervousness temporarily relieved his loss of concentration due to blood loss. situation.

Except for the first time that the takeaway brother succeeded in sneak attacking while the function was still sleepy, and then the takeaway boy failed to succeed during the entanglement between the two, but he still got his clothes cut by the knife edge. During this period, the function wanted to run several times The bedroom door was locked, but was noticed.

Function’s mobile phone was thrown to the ground by mistake during the fight. The screen of the mobile phone flickered. It was obvious that someone was calling, but no one answered. The takeaway boy stepped on the screen while chasing Function. Broken.

Function was a little dizzy and exhausted due to the injury to his left waist. He bent over to hide, but staggered and fell to the ground because he was tripped by a chair leg.

"No, didn't I just forget to pay once? You don't want to kill me!" Function wanted to repeat the same trick, trying to distract the delivery guy.

Unfortunately it failed.

The ground was already in a mess, and many of the messy items were thrown at the delivery boy by Function in order to defend himself. The blood dripping on the ground should have been round, but it became strange because of the messy footsteps of the two.

Due to excessive blood loss, Function’s eyes turned black, and he groped on the ground with his hands, hoping to find something that could be used for self-defense. At this time, Function could not see the steps of the delivery boy, and Function’s hearing became more sensitive because of visual impairment. He heard the light footsteps of my brother's sneakers on the floor tiles.

Function only knew that the delivery guy was approaching him, and he backed away with both hands and feet, but he didn't know that such a reaction was exactly what the other person wanted.

The takeaway boy saw Function's tentative hands on the ground, and he had a guess in his heart. He quietly walked around behind the Function, and held up a square glass ashtray. The object was hit hard.

The function fainted.

The takeaway boy strode up to Function, pulled the mask under his chin, exhaled, and showed a triumphant smile. He gripped the handle of the knife tightly with four fingers, and stabbed down at Function's heart. ——

The blood stained the tip of the knife, and a few drops splashed on the delivery guy's face. The delivery guy wiped it off with his hand, then pulled out the knife, and stood aside, admiring the tragedy of the function.

"Then I'll wait until you're not breathing before leaving."

The delivery boy said softly, of course, no one could answer his question, he smiled with his eyes bent, a gust of wind rolled up the curtains, his black pupils merged with the night behind the window, after the wind passed, the curtains fell heavily.

With a "snap", the plastic bottom of the roll-up curtain collided with the window glass, making a loud noise, but the delivery guy turned a deaf ear.