Quanzhi Fashi: Q Ban Xiao Juchang

The story begins with the protagonist waking up to a world drastically changed. His familiar high school now teaches magic, instructing students to become outstanding magicians. The world that once revered science has become one that reveres magic. Yet, he still has the same teacher who sees him as a slacker, the same classmates who look at him strangely, the same father struggling at the bottom of society, and the same beautiful but disabled stepsister…

(Source: Tencent, translated)