C19 A Mystery

Indeed, the children's flow of information was more efficient than the human world.

After a while, Sang Tian found him on WeChat.

"You're looking for me?" This child didn't have many words. In his memory, even the word "teacher" had been silently omitted.

"How's your studies these days?" After all, the two of them hadn't contacted each other, so they couldn't be too sharp.

"That's it