Valis X: Valna - Haha to Musume no Kunō

Valis X: Valna - Haha to Musume no Kunou is the third chapter of the episodic Valis X .

The common story of the five episodes of Valis X is based on the events depicted in various installments of the Valis series, describing the adventures of a Japanese teenage girl Yuko Asou and her friends in a parallel world named Vecanti, where she fights its evil tyrants with the legendary sword of Valis. However, the episodes do not follow the plots of the individual games; rather, they tell the over-arching story of the entire series their own way, liberally mixing locations, characters, events, etc., and adding new sub-plots.

The first four chapters describe the same events from the point of view of four different characters; the final episode concludes the story.

In the third chapter, the protagonist is Valna, Yuko's twin sister who grew up in the Vecanti dimension. She is an apprentice in magical arts, and is helping Yuko to become the Guardian of Vecanti. The main story is the same as in the two previous episodes; however, since this time we see the events through the eyes of a local person, there are many new scenes and more background information about the world of Vecanti.

All the episodes have the same graphical style and identical gameplay system. Unlike the original Valis series, the episodes of Valis X are "visual novels", composed of text and still images; interactivity is confined to occasionally making a decision, which will slightly alter the following events (usually of sexual nature), without influencing the general story.

All the episodes of Valis X have large amounts of explicit sex scenes, mostly revolving around lesbian sex and depictions of the heroines being raped by tentacle monsters.