クラスで2番目に可愛い女の子 海 is a Weiß Schwarz card from 角川スニーカー文庫 Vol.2 Scn/W123-101. Compare listings from Singapore Weiß Schwarz sellers on CardJio, then jio them on WhatsApp.
【AUTO】 [(1) Discard 2 cards] During the turn this was placed on stage from hand, when this attacks, you may pay cost. If you do, search your deck for up to 1 《Sneaker Bunko》 characters, show them to your opponent, add them to hand, and shuffle your deck afterwards. 【AUTO】 {CX Combo} When the Book CX (128) is placed in your CX Area, if you have 2 or more other 《Sneaker Bunko》 characters, this turn, this gets +2000 power, and until the end of your opponent's next turn, this gains the following ability, "【AUTO】 When this is Front Attacked, you may return this to hand."
This card was printed in Japanese only; the English text above is an unofficial community translation.