Liar Liar

Liar Liar (ライアー・ライアー, Raiā Raiā) is a Japanese romantic comedy light novel series written by Haruki Kuō and illustrated by konomi.

Plot
At Academy Island, everything is settled through “Games” waged for a certain number of stars, with the strongest student being granted the ranking of Seven Stars. Hiroto, a transfer student, unexpectedly beats the strongest empress and becomes the pseudo-strongest in the school! A mind game of lies and bluffs begins!

Official
Light Novel Site