When the alarm clock rang, Song Xing was already awake.
He lay on the creaking wooden bed and stared at the water stain on the ceiling for more than ten seconds. That thing looks quite regular. Last month it was a mess, but now it looks a bit like a normal distribution curve - it seems that Aunt Wang upstairs didn't turn off the faucet.
"Dad!"
The little man next to him turned over and slapped his face with his little hand.
