積み重なる思い出 is a Weiß Schwarz card from ゆらぎ荘の幽奈さん YYS/W61-074. Compare listings from Singapore Weiß Schwarz sellers on CardJio, then jio them on WhatsApp.
【CONT】 All of your characters get +1000 power and +1 soul. ([[salvage.gif]]: When this card triggers, you may choose 1 character in your waiting room, and return it to your hand)