Who told you ?

Yu Dong did not let the three sisters rest. She remained true to her word and only allowed Yu Jianian and her sisters to rest when it was time for lunch. 

"I am dying!" Yu Jianian gasped for breath as she crawled under the shed where Yu Dong was resting. She plopped on the soft hay that was scattered on the ground for them to lie down and panted heavily. Her legs were trembling nonstop and Yu Jianian was on the verge of keeling. 

"You are not going to die," Yu Dong was rather calm as she asked Mammy Lin to open the lunch box and handed the water bag to Yu Rongsa who took it and gulped the water down in one go. She did not stop drinking water until the bag was half empty. Fortunately, Yu Dong brought more than one bag of water. 

Yu Binghuan and Yu Jianian also drank water and only then did they feel a bit better.