かつて見た星空 星乃一歌 is a Weiß Schwarz card from プロジェクトセカイ カラフルステージ！ feat. 初音ミク Vol.2 PJS/S109-116BP. Compare listings from Singapore Weiß Schwarz sellers on CardJio, then jio them on WhatsApp.
【CONT】 You can only run up to 4 copies of this card or "From Tokyo/Ryuusei no Pulse" in your deck. 【CONT】 During your turn, if you have another 《Leo/need》 character, this gets +1500 power. 【AUTO】 [Discard 1 《Leo/need》 character] When this is placed on stage from hand, you may pay cost. If you do, search your deck for up to 1 "Saki Tenma, The Ever Shining Social Butterfly" (PJS/S91-017), show it to your opponent, add it to hand, and shuffle your deck afterwards.
This card was printed in Japanese only; the English text above is an unofficial community translation.