Harry Potter: This senior is pretty strong

An unexpected turn of events transports Qin Yu to a new world. In this world, a group of people call themselves wizards and can wield wondrous magic. Upon arriving, he gains a powerful yet dangerous ability. Before learning to use this power, he must first stay with a little girl named Hermione and then attend a magic school with a white-bearded old man named Dumbledore. Thus begins his magical journey! (The protagonist enrolls a year early; settings may be altered. Read at your own risk. HP fanfiction)...