The third Viper has the same structure as the two previous entries: three unrelated stories with little interaction, but many animated sex scenes.

The stories this time are:

1. "Northern Lights" describes a competition between two young apprentices of kendo. The protagonist, a young boy, is challenging the girl Asuka, who claims to be better than him. He needs to practice in order to win, especially because Asuka promised him she will do whatever he wants if he defeats her...

2. "Children's Play" tells the story of a teenage girl named Yuki, who is in love with an older school mate. One morning she goes to school, only to discover that someone has made pictures of her masturbating to the boy's photo...

3. "Rear Under" follows the adventures of a team of three female soldiers who have to infiltrate the base of an evil robot simply known as "Boss". One of them is captured, and the other two have to save her at all costs.

[From Moby Games]