C390 enigma
"That's a good idea. I agree with it!"
Chen Yu gave a thumbs up.
"Hehe, grandpa is smart, not me!"
Yu Xiaoqian stuck out her small tongue, and cleverly changed the topic: "I heard that Grandfather Hua has something to talk about with you, so I'll go and busy myself first."
With that, Yu Xiaoqian left like a little rabbit, jumping around