On May 18th, early Monday morning of the fourth week of semester, Wang Ling put on his school uniform. After washing up and tidying up his appearance, he was ready to leave. When he reached the entrance hall and opened the front door, he found his old grandfather sitting in the yard of the Wang family's small villa, quietly soaking up the rays of the sun at dawn like a starving sapling. In old age, a person's sleep cycle couldn't help becoming shorter. Wang Ling had cast a spell last night to ease his grandfather's sleep, but when it came down to it, he couldn't do anything about the old man's own biological clock. Seeing Wang Ling come outside, the old man was startled for a moment, but then gave him two lunchboxes full of food. "This is sweet and sour spare ribs and fried squid with sauce." Wang Ling was stunned. "..." Unexpectedly, it was normal home cooking! He touched the warm lunchboxes; he didn't know if the old man had remembered to put salt in the food this time, but he still couldn't help feeling moved. Just as he was about to say something, the old man pursed his lips and said, "I've been waiting at the door for a long time, but I still haven't seen my grandson. You're Jingke, right... hurry up and pass this food to my grandson." Wang Ling: "..." ... ... The atmosphere in class was clearly a lot more lively than it had been when school started three whole weeks ago. The commissary in charge of studies, Little Peanut, began to collect the homework one by one. Little Peanut's real name was Su Xiao. The people in class who liked to make trouble would always deliberately write "Su Xiao" as "Su