"Liar Liar" is a manga series that blends elements of comedy, romance, and psychological intrigue within a competitive school setting. The story is set in Academia, a prestigious institution where students compete for rankings through a game-like system called "Games." The protagonist, Hiroto Shinohara, is a first-year student who unexpectedly defeats the school's top-ranked player, Sarasa Saionji, in a high-stakes game. This victory propels Hiroto to the coveted position of the "Seven Stars," the highest-ranking students in the school.

Hiroto's rise to the top is not due to skill or strategy but rather a series of bluffs and deceptions, earning him the nickname "Liar." His success hinges on his ability to manipulate perceptions and outwit opponents, despite lacking genuine talent. As Hiroto navigates the cutthroat environment of Academia, he must maintain his facade while facing increasingly challenging opponents who seek to expose his weaknesses. The series explores themes of deception, ambition, and the psychological toll of maintaining a false identity.

Key characters include Sarasa Saionji, the initially dominant top-ranked student who becomes a rival and eventual ally to Hiroto; Shirayuki Himeji, a skilled and perceptive player who sees through Hiroto's lies but chooses to support him; and various members of the Seven Stars, each with unique abilities and motivations. The interactions between these characters drive the narrative, as alliances shift and rivalries intensify.

The plot unfolds through a series of strategic games and personal confrontations, with Hiroto constantly balancing his desire to stay at the top with the moral implications of his deceitful tactics. The series delves into the complexities of human relationships and the lengths individuals will go to achieve their goals, all set against the backdrop of a high-stakes academic competition.