A deal with the foe

"So? What was the plan you came up with?" Jinhai asked the moment they walked inside their apartment.

"I have to meet up with a friend for an urgent business meeting. I will tell you about it when I get back." Yun said as he headed for the stairs.

"But you never mentioned anything about going to meet a friend today." Jinhai protested as he followed Yun.

"He called while I was trying to get Diego's details. I just remembered."

"You don't even have friends."

"I'm full of surprises, ain't I?" Yun asked without stopping as he walked into his bedroom and shut the door before Jinhai could walk in.

He opened the backpack he had been carrying and took out two small paper bags which had the samples he needed. 

One was the toothbrush he had gotten from Mr Wang's side of the bathroom while the other continued the hair particles he had gotten from an hair brush which obviously belonged to Mr Wang.