HOT Versatile Mage

A brief description of the Versatile Mage manga:
He woke up in a familiar world that had changed so much. His familiar school has become a magical school that teaches magic, encouraging everyone to become powerful magicians. Outside the city there are many monsters roaming. The world of science and technology has become a world of magic!
Despite this, his ambitions and position in society have not changed. He is the scum of a society with a disabled sister who cannot walk. However, Mo Fan found that all people can control only one element, but not him, he can control more!