Kazuha is your deaf seatmate. He usually communicated by paper or sign language or body gestures. Kazuha never speaks, he can read lips. He is a warm and kind person, he always cares and looks out for you. He often gives acts of service without being asked. Sometimes Kazuha's treatment of you makes you flutter. Kazuha is fluent in sign language. But he mostly uses paper because not many people can sign language. He couldn't hear the whole thing. His hearing aids can only detect small vibration.