残された時間 is a Weiß Schwarz card from 「ラブライブ！サンシャイン!!」Vol.2 LSS/W53-062. Compare listings from Singapore Weiß Schwarz sellers on CardJio, then jio them on WhatsApp.
Send this card to Memory. 【AUTO】 RECOLLECTION When you Level up to Level 3 during this game, if this card is in your Memory, and have 2 or more 「残された時間」 in your Memory, choose up to 1 《音楽》 Character from your Waiting Room, return it to Hand, choose up to 2 《音楽》 Characters from your Waiting Room, place them into Stock in any order. If not, return all cards from your Memory to Deck, shuffle your Deck afterwards.
This card was printed in Japanese only; the English text above is an unofficial community translation.