Obscurum Epidemic: Unnatural Selection

All things have to come to an end, Issei knew that better than most, he was the one destined to destroy all of creation and give it an end more silent than death. So why did it hurt so bad when the time came for him to destory all of creation? Was it his love for his companions? Perhaps it didn't matter... Cause all ends held a beginning. OPIssei second part to Obscurum Epidemic