みんなには内緒だよ
Keep This a Secret is a Weiß Schwarz card from 化物語 BM/S15-097. Compare listings from Singapore Weiß Schwarz sellers on CardJio, then jio them on WhatsApp.
Draw up to two cards, choose a card in your hand, and put it into your waiting room. Choose one of your 《Strange》 characters, and that character gets +3000 power until end of turn.