Kagomiya Tei, a sergeant of the Kagomiya Group, is suddenly transported to another world where he meets and falls in love with Abel, the leader of the Kingdom Knights.

However, due to an attack by the sorcerer Vernon, the emperor loses the power to return to his original world. He sets out on a journey with Abel to find a way to return home and discovers that “elves” are the key to the way back, but they have no luck in finding each other and have a difficult time.

They believe that they will be able to overcome the harsh journey by deepening their love and bond with each other, but Abel gradually begins to change...?