Translated, this achievement refers to collecting all illustration and weapon cards for a single character. This will likely be your last achievement you will get. You get Weapon Cards by purchasing them and also one at every Game Over screen. Illustration Cards can ONLY be obtained at Game Over Screens. So, you will want to concentrate on a single character to obtain all for one character. Replay the first level (or the first few) over and over again on G-Mode. Die and don't continue to get a Game over. If you get good at it, you can earn lots of points by not dying/getting hit to obtain an "S" rank. Also, the harder the difficulty the more points you get.
You can spend your points on Weapon Cards. The shop is the third option from the main menu. You also get Weapon Cards from Game Over screens, but the more you have the less frequnt they become, so you are better off buying them. Illustration cards only come from Game Over Screen, and like weapon ones, become less frequent the more you have. You will have to playthe first option from the main menu, known as Arcade or sometimes referred to as Original Mode. Quickly die and hope you get a missing illustration card.