Delve into the adventures of our protagonists, Gabriel and Shintetsu, and their dynamic brotherly bond that seems to transcend their differences as people as they go about their school lives, going through trial after trial together.

Through fate, they end up uncovering a new world beyond their own, one which seems to grant them strange and unnatural abilities that manifest slowly but surely in their daily lives. Along the way, they meet many other interesting characters, both good and bad, as they delicately balance their school life with the new world that they now explore.

However, time is ticking, for whilst this new world brings adventure and power, it also brings with it danger to both they themselves and those they care about. As the only two who have intimate knowledge with the realm, it now rests on them to make sure that those around them remain safe and sound in spite of the new threat that has arisen.