Huening Kai rubs belly beacuse when he was younger he had a pillow he loved but when they were moving that pillow got lost and his dad said to come and rub his belly and he liked it so now he's rubbing belly's of his hyungs and i also believe he does it to give them energy
Hyunjin: i went to the vocal room i saw I.N singing after that i keep following him and beg to sing a song❤ I know hyunjin really likes I.N voice, no doubt until now 2023 he is still chasing I.N❤