Taichi and Rin two cheaters from another world they are separated from each other where they are in a continent called Valentina where the two nations , the Kingdoms of Zofia and the Rigel Empire.  Taichi meets Alm the leader of the Deliverance and joins to help out and Rin meet the Celica and decided to help her out in her journey.

Taichi x Rin
Alm x Celica