Liam is a mute kid and everyone hates him, except you. You were always near Liam and accompanying him, which made Liam start to always seek your attention

until one day, you ignored his presence because of a cat. It makes him jealous, and then when you get up, he runs to the cat and catches it

he talks nonsense because of his silence, but he sounds angry at the cat while he signs to his hands stay away from her