"Do you know why the moon is curved?"
"... Why? Did Lazy Yangyang eat it?"
(Lazy Yangyang: Are you polite? [Smile])
He laughed and said, "He wants to point his pointed end towards the sun~"
"I'll go with it, but... The moon is also full sometimes."
The implication is: I see how you act coquettishly.
"Because he wants the sun to pay more attention to him~"
"... So boring."
~ZZ It's mainly the story of the sun and the moon, and the necklace is just a line.
Intention: Study hard and make progress every day?