I will ship the item with waterproof and crease protection. m(_ _)m Case is not included. Instant purchase is OK! I will be listing many other Reijin-ten postcards. I will offer a discount for multiple purchases. 2-card set → 850 yen (including shipping) 3-card set → 1000 yen (including shipping) 4-card set → 1100 yen (including shipping) If you want to set the individual price of 700 yen items to the above set prices, it will be +50 yen. Please choose "bundle" and I will create a dedicated listing. Feel free to ask any questions in the comments! For more than that number of cards, please inquire about pricing.