Tập 1: Takeshi và Michi bắt gặp trò chơi thẻ Weiß Schwarz trong một buổi học nhóm ở trường.

1

Takeshi and Michi stay overnight at their school to study, where Takeshi picks up a card and Michi tells him that it comes from a game called Weiß Schwarz and that she has won many tournaments involving that game. Michi ends up getting sucked into a portal. (Source: Wikipedia)