鎮護庁祓竜局誓約課, Chingo Cho Harai Ryu Kyoku Seiyaku Ka

A story of people in the near future being encroached upon by great nature. Mysterious beings with the power to return everything to nature—Dragons. Itsuki and Kayano, members of the "Covenant Division," serve as mediators through a ritual called the "Covenant" with these dragons. An Apocalyptic Human Works depicting the growth and conflict of these two members of the Covenant Division as they face these great beings!!