The three girls visit a new board game café that opened up near their school. There, they meet Emilia, another board game fanatic around the same age as them, who moved to Kyoto recently from Germany.
This pattern is called a Celtic knot.
."تدعى تلك الانامط بـ"الربطة الكلتية
Diese Zeichen sind keltische Runen.
Ce sont des symboles celtes.