When a mum shouts on a deaf and mute person this happens

"My name is Riku, and this is my high school life..." This is a story where the Kingdom Hearts characters mingle with each other. The elder members of the Organization serve as teachers, and friends and foes alike are present... "I thought I was missing something... Then, she came... The new kid..." This story is purely fanfiction. Kingdom Hearts belongs to Square Enix. I do not intend to copyright.