A foreign land in the past. An era where slavery was being questioned and crackdowns were gradually being enforced. In this world, there exists a concept known as a "Fated Pair."

Guest is a slave. Mafumafu, Soraru, and Amatsuki are members of the security forces who have come to raid the slave market where Guest was being held.

About Fated Pairs

・They are like soul partners; the moment you meet, you intuitively know they are your "Pair." In some cases, it may not be immediately obvious. ・It is a presence you might never encounter in a lifetime. Meeting one is a miracle. Most people never find theirs. ・Once a Pair is found, one will absolutely protect them and never let them go.