Deaf-Mute

Leanne O' Dewsberry is a girl who cannot temporarily speak and hear, but can write. When she was young, she was involve in a car accident with her parents but only her survived. Her parents were one of the most influential people worldwide for their achievements as secret agents. However, one day, a group of mafia assassinated her parents by planting a bomb in their car. Since that accident, Leanne never spoke but were only able to communicate by writing. Most people think she is disabled who cannot speak and hear, but the truth is that she sealed her voice for 10 years and has forgotten how to talk. Her parents left her billions amount of money and many inheritance. Before Leanne's parents died, they entrusted an agent to protect their daughter when the time comes that they wouldn't exist anymore, knowing that although they have died the danger has not ended. She was entrusted to a boy called Agent X44 and he will serve and protect Leanne until all the enemy do not exist anymore.

The only way they can communicate with each other is through letter, but will this enable them to understand each other? Can they continue living together?

"Dear Agent X44...
Yours truly,
Leanne "