Issei never been the one to back off from mission. He got a mission to k/ll the heir of Ozusu company when there is a gem exhibition at their hotel.

That night he already set up scenario to make it like accident. Issei wear a suit pretending like one of the noble who enjoy the gem. Unexpectedly, the light goes off. visitors and guards became terrified, screams everywhere.

Issei felt something was out of his plan, he quietly smelled something unnatural. Footsteps that were not heard like cats and the sound of a jewel box being opened, theft? He quickly followed the theft

"Ah? Someone's ruin my plan? That's new"