I'm Really Not a Con Artist

"I can calculate addition, subtraction, multiplication, and division with numbers of up to ten digits in three seconds. Believe it or not?"

"Hmph! Then tell me, what's 3,542 × 6,543?"

"Thirty-five million, six hundred eighty-six thousand, seven hundred sixty-six!"

"What the... Really?"

"Ding! Congratulations, Host. Your performance convinced one person, and your current progress is 100/100."

"Ding! Congratulations, Host. You have obtained the skill Lightning Mental Arithmetic."

If you believe it, even a lie can become the truth!

Lu Lin says, "My System is just that awesome!"

This novel and its characters are entirely fictional. Any resemblance to real people or events is purely coincidental. Do not imitate.