Shu is always in trouble with money but manages to live thanks to the support given by his ex-girlfriend Ayano and the ever-devoted Kisara. The same goes for his job as a PMC. With Ayano's cooperation, Shu won a bidding war at a discounted price to participate in the "D Hazard" prevention operation that occurred in a casino. At the scene of the demon extermination, he planned to rely on Kisara's demonic powers, but she is nowhere to be found due to the money situation ruining her mood. As a last resort, he works with Ayano's leading, major PMC and confronts the Demon, but bit by bit, the battle becomes something suspicious...
I finally understand the meaning of "D Hazard"
that you investigators sometimes mention!
!فهمت أخيرًا معنى دي هزرد الذي تذكرونه أحيانًا أيّها المحققون
¡Ahora entiendo eso del "Incidente D"
que mencionan a veces!
¡Ahora entiendo eso del "Incidente D"
que mencionáis a veces!
Ora finalmente capisco che significa
 quel "D Hazard" di cui parlate voi investigatori!
Agora eu sei o que é a tal "Ameaça-D"
que a polícia menciona às vezes!