Dantoudai no Hanayome: Sekai wo Horobosu Futsutsuka na Watashi desu ga.
Guillotine Bride: I’m just a dragon girl who’ll destroy the world.·断頭台の花嫁 世界を滅ぼすふつつかな竜姫ですが。
A girl possessing immense destructive dragon powers is condemned to die by guillotine. Before the execution, she is attacked and falls from the sky, landing near Ryuunosuke Dazai. He discovers a way to save her life and prevent catastrophe, but it requires him to marry her. Through a soul bond, he gains control over her abilities, and they begin living together.