Where is you file?

"Huh... Ye... yes... It's in my hand. So, of course it's mine." Ruo stammered a little."Then why is there little cat's name in you foil?" Su asked in a confused tone."Huh! Where?" To her horror, Ruo saw Mai Yuerui's names surfaced at the tip of the foil."How can it be possible? They were not there before! I checked it several times. Op...." Ruo shut her mouth with her hand.In the mean time the lights came back."Sister Ruo Ruo, what are you saying? If it's your presentation then why would you check for Yuerui's name in your file?" Su still in her confused expression.Ruo was dumbfounded.'oh crap.... What did I say?'Then she again looked at the foil and saw that Yuerui's name have vanished.Ruo's joys knew no bounds."What the crap are you saying, Su Dan? Where is Yuerui's name? See!" Ruo raored."It was there before." Kai said in a cold voice.Kai snatched the foil and flashed light on the foil again. And Yuerui's name appeared again.The people in the seat were really shocked and surprised. Some of them were having so much fun that they regretted why they didn't bring any popcorn.Kai turned towards Yuerui who was standing at the back of the stage and said," Mai Yuerui, didn't you say you lebelled your foils with invincible ink pen?"Yuerui slowly entered the stage while holding both her hands at the front. The audience finally saw her face. Yuerui slowly looked at the people in the seat then turned to Kai and slowly nodded. She made a little innocent face."Guys actually this torch of mine is not normal torch. It reflects uv lights and let's us see the invincible ink." Kai then snatched every foil from Ruo's hand and flashed at them with his torch. Every single one of them showed Yuerui's name.The whole auditorium started buzzing with people's whispering."Can you explain this to everyone?" Kai asked to Ruo.Ruo on the other hand, didn't know what to say. She wanted to flee away from this place."A.... aamm... Actually.... " She didn't know what to say. Ruo dug her own grave.On the other hand, Yuerui was still making the innocent cry baby type face and said, "Sister Ruo Ruo... Did you really take my files? Ho... How can you do this to m.... me?" Yuerui was really putting a good act.Yuerui did such a great performance that even Ruo couldn't find out.The innocent face of Yuerui made her even more uncomfortable."Ruo, is what Kai is saying really true?" Zongguan said in angry voice. He didn't think in a million years that one of his acquaintance will do such a thing."I... I didn't.. yeah.... I got my files mixed up with hers. May be our files got exchanged." Ruo made an excuse out of the blue."Then where is you file?" Xianwang who was still sitting in his seat leisurely spoke now in his cold and majestic voice.