Makoto and Yura Onoda are a newly-wed couple with zero sexual experience. Yura is a shy and naive 25-year-old woman whose good looks grab men's attention, something that she dislikes because she gets embarrassed very easily. Her husband Makoto is of the same age, but as opposed to his wife, he loves having dirty thoughts about other women. Physically though, Makoto is truly faithful to Yura. Both of them may be virgins, but now that they are married, they are ready to dive into the world of sex, "practicing" as often as possible. However, the world of sex is complex, so they need all the help they can get to find their way through it. Thankfully, their friends, acquaintances, and porn media lend them a helping hand.

The Dirty Pair are travelling to the planet of Ookbar in search of a missing girl. Kei and Yuri have traced Missinie to the forest of Nolandia, but their investigations have stalled thanks to the less-than-helpful Chief of Security. But the Dirty Pair have never let a little bureaucracy stand in their way.

When Sybel, a freelance reporter, discovers a military plane crash, she is thrilled by the prospect of getting her hands on the latest inside scoop. However, she is unaware that the plane was carrying two top-secret prototype android assassins who will stop at nothing to destroy their target. As the military frantically tries to clean up its mess, Sybel races against time to find and protect the robots' targeted victim—all while documenting the military's misconduct—before it is too late.

Amane Todoroki is a young girl who is straightforward but also unthinking. She will try her very best in everything and say, "I don't know how to answer you if you ask me whether this can be done. I just believe it can. If not, then nothing will get started!" She easily gets stuck in her thinking, but she can also get easily moved at something small and start crying.