[Concave-Convex World] the Treasures of the Thunder Lion Pirates

One day, the third prince and fourth princess of Thunder King took the royal illegitimate son Camille and ran away from home... And leave an interstellar message. The silhouettes of the three people were reflected in a three-dimensional image. The third prince with black hair and purple eyes, Lei Shi; the fourth princess with silver hair and purple eyes, Mia; and the black-haired and blue-eyed illegitimate son of the royal family, Camille. "We are going to be pirates. When we get tired of it, we may come back." Lightning protection: The male protagonist is just a matter of writing. The female protagonist is a native and goes into battle herself. Logic novice, poor writing skills, German orthopedics. The younger sister of Lei Shi and the elder sister of Camille. The Thunder Lion Pirate Group without a ship.