I'll Always be Here for You... KuroKen Angst Fluff

Hey guys! It's me :) I'm writing another book, but this time, kuroken!
!!!COVER ART IS NOT MINE!!!
This is an Angst/fluff book btw so yeah, I won't spoil too much about the book but here's a brief description :) Please read all of it!
(cover is not mine)
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Kenma Kozume is a 2nd year student in The University Of Tokyo. He doesn't have many friends but the ones he does have, he cherishes them with his life. Their names are Hinata Shoyo, Akaashi Keiji and Iwazumi Hajime. Kenma is a pretty normal 19 year old, except for the fact that he's mute and has severe social anxiety when it comes to anyone other than his friends and little sister Katsumi Kozume. Kenma has been mute since he was about 4 years old, he never really had a good childhood, until he was 14 years old he was and still is neglected and malnourished by his parents. He was barley let outside the house other than to go to school, so he was very introverted and had no friends until he was 17. The 'pudding head' gets bullied most days at school for being mute, his friends try to get him to open up to someone but Kenma always refuses and just deals with it by himself. (deals with it as in crying himself to sleep)
Kenma has never told anyone about the abuse he has suffered from his parents either, and he doesn't plan on telling anyone about it anytime soon, he didn't want to be burden to the only friends he has. If he loses them he can't just go and make new ones, no one wants to be friends with the "speechless weirdo", but that changes when a certain someone moves to their school from Canada. This boy is determined to make Kenma his friend despite his disability, and he wont stop till Kenma agrees. What will happen? read to find out...