Nao is a stupidly honest girl who sees herself trapped in the Liar Game after finding 100 million yen in a box along with a card. Now, she has to take care of the money for 30 days and try to steal another 100 million from his rival. Nao's father is in the hospital and none of her friends believe her so she contacts Akiyama Shinichi to help her. (Source: ami)