Meeting A Demon Lord

Tim is a very shy guy all his childhood and young teenage years. Now in his young adult years he is still having trouble finding friends or even finding a girlfriend. So to take his mind off of his crappy college life, he goes to book stores or libraries to help.

Unfortunately all his normal stores and the library is closed or doesn't have any interesting books to read. So as tim is walking around downtown he finds a used book store and walks in to browse and that's where he sees a very old book with a red jewel in the center of the book. He opens the book and next thing he notice, he is in a massive hallway inside a castle