Answer :
Dear XYZ,
I know that you like mangas but the life is much more than that. It is not easy for me to say but you are ruining your youth over a hobby. I understand that you are an introvert or may be you had bad experiences with people in your past but you have to go outside and make new friends, it will only help you grow as a person and enhance your personality.
Make friends so that you can understand things from different perspectives, it will make you more open minded. You are closing yourself and with each passing day interacting with other swill get more difficult for you.
