～パンツを見せること、それが……～大宇宙の誇り

A meteor struck Mamoru when he was a kid, but he didn't get injured at all. That's why he was called "Miracle Meteor Boy". Seven years later, a beautiful girl surrounded by noble aura suddenly appears in front of Mamoru and he is taken to a strange place. Yes, it's inside a spaceship and there he can see beautiful girls showing their underwears...

"Show the Holy Ball." He doesn't know what she is talking about. According to her, they are from another planet to get the "Holy Ball", which is a key item of succession battle for the throne. To show underwear is also a proof of the royal family and the pride of the grand universe. When they check Mamoru's body, the Holly Ball is found inside his body. As a matter of fact, the meteor which struck him is the Holly Ball. To get it out, Mamoru needs to reach a universally stunning climax. Like this, a battle for the Ball begins...