Primary school LWJ who's so quiet pretty much all of the teachers assume he's non-verbal. He doesn't respond with words to anyone except his Shufu and his gege and when he does it's so quiet they have to bend down to hear him. LWJ doesn't really have friends at school because of it.

That is until one day, a new boy joins their class. WWX doesn't care if LWJ is quiet, he knows he's listening, he knows LWJ will nod or shake his head, he knows if it's important he'll write something down.