Yitian picked his ringing phone that woke him up and squinted at the screen, trying to make out name or number from the hazy sign. It was some number, so he hung up on it. Nobody sane calls at, he gazed at the time, hell, 3 am. He was too tired from all the work they made around the buildings. He had never guessed that running around, taking measurements and sketching plans would be so tiring. The borrowed phone chimed with a message. Yitian reached for it again and tiredly opened it.
"Pick up! Yixing" Yitian read and immediately got up and dialed the Yixing's number. Because when Yixing called it would be bad, not knowing where he got his number. Not even Yitian himself knew his own number.
