Memory in the Letter

Aksorn moves to his new dorm and found out a guy living inside the mirror located in his bedroom. As the story progressed, Aksorn found a novel that matches his story with the guy in the mirror uploaded on a website. Is the author of the novel Songjam? Is there a way for them to meet in person?
(Source: AsianovelasBL Twitter)
~~ Adapted from the web novel "Memories in Letters" (ท ร ง จำ ใ น อั ก ษ ร) by Hungrybird (ฮังกรีเบิร์ด).