恋人旅行 is a Weiß Schwarz card from 角川スニーカー文庫 Vol.2 Scn/W123-125. Compare listings from Singapore Weiß Schwarz sellers on CardJio, then jio them on WhatsApp.
Choose up to 1 character in your waiting room, return it to your hand, and you may perform the following effect. "Your opponent returns all cards from their stock to their deck, shuffles their deck, and puts the same number of cards from the top of their deck into their stock."