It's not bad, it's just something that we ourselves aren't capable of. We wanted to watch their progress.

[ Being able to cure demons and convert them back into human souls would have been revolutionary. It would have changed everything. ]

Unfortunately another project of theirs drew the attention of several high-ranking demons at around the same time. Everyone who knew the cure was wiped out, as were many of their families and a number of their unrelated friends.

Collateral damage has a tendency to follow organizations like theirs.