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Wang Yumo
"Wang Yumo, do you remember what I told you?
"Like is like a sufficient condition, being liked is a necessary condition, and liking each other is a necessary and sufficient condition?
"Then you are my necessary and sufficient condition. Tell me, is this proposition true or false?"
Wei Zhiran stared at him for a while, then pulled down his arm like a gamble. Looking at the red corners of his eyes and the dull look in his eyes, he breathed a sigh of relief and smiled.
"I guess it's a true proposition. Do you need me to say it again?"
Wang Yumo blinked, but before he could react, he said, "... Need."
"I like you."
Concept: Children chasing stars