College student Chen Ye accidentally swallows five-yuan off-brand vitamins (actually defective leftovers from a high-martial world’s gender-reversal potion) and unexpectedly turns into a girl, while still harboring the soul of a bona fide man. As he “studies” his new body with a magnifying glass, gets into an embarrassing mix-up in the men’s restroom, and tries to keep his identity secret from his roommate and class monitor, a series of awkward and hilarious campus mishaps unfolds.