MTL - The Great Voyage: the Prop Master on the Straw Hat Ship - Chapter 12

Waking up after a sound sleep, Xie Mingzhe reincarnated into the future world. Here a holographic trading card game is popular around the Galaxy, many professional card players and card designers coming to the fore.

Rainer, an amateur arcanist and college student, sought to create a new spell far surpassing the magic of the few he inherited from his grandfather. Yet the interference of an unknown event during the casting of his spell led him to be thrown through space and time.

Upon meeting the girl who would become her adopted younger sister, the duke’s daughter Christina regained memories of her previous life. Through those memories, she learned that her new sister, Mishuli, was the heroine of a certain story. And though the story depicted a Christina who abused her sister, the real Christina turned into a siscon who spoiled Mishuli to no end.