Liar Liar Vol. 4 (Light Novel)

Academy Island is an island where students play games to decide their rank. Hiroto Shinohara is a student who achieved the highest score ever in the Academy’s entrance exam, beating the previous year’s champion, Sarasa Saionji, and becoming a Seven Star on the first day of school and setting the fastest time in the Academy’s history. Well, that’s what he tells everyone, anyway. But it’s actually all a lie he has to keep up to fulfill his purpose on the island. And he’ll use any means to do so, whether relying on his beautiful maid Himeji who helps him cheat or partnering with Saionji, who is actually a fake herself!
Notice: This book is written in Japanese.