There are five storylines based around five different female characters. The player's job as the male avatar is to stalk them without being detected through a 3-D environment. Each storyline has a "Love" ending in which the avatar meets the character at the end and they make love; a "Rape" ending in which the avatar abducts the female character and forces himself on her; and an extra voyeur scene that can be found in a particular part of the storyline. To achieve the "Love" and "Rape" endings requires the player to find objects throughout the game.
Katori: The protagonist.
Rin: Rin is a brunette schoolgirl clad in a green jacket and a blue tartan skirt.
Reiko: Reiko is a redhaired nurse in a blue sweater and black skirt.
Chris: Chris is a blonde stealth ninja character in a skintight costume.
Mayu: Mayu is a fast food waitress who wears her uniform throughout the game. She also appears in Cap Raper, an expansion to Battle Raper 2.
Mio: Mio is a miko in a white kimono shirt and red hakama with a sword.