Digimon Season 2: Digital Monsters

MKR is a Clamp anime about three girls who are taken from Tokyo during a school field trip, and transported into a fantasy world. Hikaru Shidou, Umi Ryuzaaki, and Fuu Hououji must fight a slew of enemies, overcome trials and tribulations, and face their inner demons to save Cephiro, a wonderfully detailed world, from a dastardly evil and powerful Priest, Zagato.

At the island-based Duel Academy, young potential duelists gain the skills they need to become a top notch duelist. The students are divided into three classes named after the three Egyptian god cards: the top ranked Obelisk Blue, average Ra Yellow, and beginner Slifer Red. Jadan Yuki is currently a student at the academy, and is a huge fan of the famous Yugi Mutou. Though Jadan must start off slowly in the Slifer Red class, his goal is impressive: to become the next King of Games! Together with Syrus, Chumley, and Bastion, their dueling matches will draw them into the shadow realm, and into trouble. Jadan and the gang must do the only thing possible: get their game on!