College student Shinya Okama is initially tricked into working at a gay bar by his friend Tanaka, but he starts to enjoy it when he sees how cute he looks in drag as "Catherine". However, his infatuation with himself is short lived when he falls in love at first sight with Miki, an innocent college girl and regular at the bar who happens to look a lot like Catherine. Although the two of them hit it off right away, Miki only knows him as Catherine, and to top it off, Miki already has a boyfriend. Not wanting to concede defeat just yet, Okama continues his struggle to get closer to Miki while trying to prevent her from making any progress with her boyfriend who just wants to get in bed with her.

For the right price, no secret is safe! In the grimy motels and smoky back rooms of Tokyo, three men -- professional Cho, talented but unpredictable Ken, and clueless apprentice Smile -- have set up business as VOYEURS, INC., using the latest surveillance equipment and oldest crooked tactics to expose the peccadilloes, perversions, and crimes of corrupt and powerful men.

Trepanation is the procedure of drilling a hole in the skull. It is said to increase the blood circulation and improve pressure inside the skull. It is also said to bring out a person's sixth sense, the ability to use ESP, see ghosts, move objects with one's mind. This is speculative fiction based on the concept of trepanation.

Growing up a target of bullying, a senior high student, Shiroishi Hajime, is a skilled karateka, but goes completely weak at the knees with fear when it comes to fighting.

Among all this, a power junkie and classmate of Ichi who does nothing but fighting, Akakuma Dai, sets his eyes on Ichi!!

When Ichi starts to shed tears, all of a sudden a violent impulse that resided inside him is unleashed!!!!

This is the complete collection composing of the prelude to the masterpiece: "Ichi The Killer", and for the first time ever in book form: "Ichi The Killer - The Birth"!!

The story follows Hikari Shirochi, an ordinary high-school boy whose hobbies are games and PC-modding. In the first chapter, mysterious phenomena occur to his body, which conducts static electricity unusually well.

In Shinjuku Kabuki-Cho, the biggest sin town in Japan, there are two crazy guys. Ichi is a coward and a wimp, but once he breaks into tears, he turns into a human weapon. With great martial arts skill and a blade hidden in his boots, he butchers a bunch of enemies into mincemeat in the blink of an eye. His arch enemy is Kakihara, a yakuza boss who's tired of everything, including himself. Only when he pierces, cuts, and burns his own and other people's bodies does he feel that he is alive.

"An unknown city in an unknown land. Demons infest the land, madness rules the streets. Money and greed control the people who prey on each other. The young use their flesh, the strong their violence and sly their wits, trying to reign over the city. The weak are raped. Pleasure is only for the strong. That is the law, however cruel. The game has begun. The question is who will bring it to an end."