C80 [beauty! the April Fool's Day Has Passed.]!

Hey, beautiful! April Fool's Day is long gone!

Gao Chi had just ended a phone call when the class bell began to chime. The old professor entered the classroom right on schedule. Roll call was taken, and the lesson commenced. Despite having taken a week off, Gao Chi, whose mental acuity was now five times that of an average person, found studying effortless