Ouran Academy is a prestigious school with most students coming from wealthy families. One of the few students who comes from a modest background is Haruhi Fujioka (Haruna Kawaguchi). Through unexpected circumstances, Haruhi Fujioka ends up joining the male "host club," while hiding her gender. Friendship and love grows between Haruhi Fujioka and the male "host club" members.

Ataru, who suffers from “savant syndrome,” has the power to discover, observe, see through, and deduct microscopic evidence of unsolved cases. Why does he always go to the criminal sites? What explains his strange behavior? Meanwhile, a mystery unfolds with Ataru and a woman named Madoka, who is a killer. The woman possesses the same extraordinary memory and deductive reasoning abilities as Ataru. Who is she?

Detectives Shintarou Sakurai (Sho Aikawa) and Koichi Hikage (Susumu Terajima) are partners. They are also corrupt and often blackmail criminal groups and seize their money. One day, the Chief of Police becomes aware that 2.5 million yen in seized money is missing. He orders Shintarou and Koichi to bring the money in by tomorrow morning. Shintarou and Koichi are in big trouble. They then read an article about a pension fund embezzlement case involving 6 billion yen. The prime suspect of the pension fund embezzlement case spent most of that money, but he has 2.5 billion yen left.