遺されたメッセージ is a Weiß Schwarz card from 神様になった日 DBG/W87-046. Compare listings from Singapore Weiß Schwarz sellers on CardJio, then jio them on WhatsApp.
Choose 1 《夏》 Character from your Waiting Room, return it to Hand. Send this card to Memory. Reveal the top card of your Deck. If that card is Level 2 or higher, place it into Stock. (Climax is considered Level 0. If not, return revealed card to its original position)
This card was printed in Japanese only; the English text above is an unofficial community translation.