I Transmigrated to Another World and Somehow Became a Paladin Through Books

During a graduation trip, young Bo Lishi falls into the sea after a sailing accident. His soul transmigrates to another world, where he becomes Luo Xite, a young man with nothing going for him, and gets caught up in a war against alien beasts. As he searches for a way back to his original world, he unexpectedly discovers a special connection between himself and the two worlds...