Two groups of people with similar powers, bent against each other instead of working together. One the mastermind of horrible sins......

"Kirijo....Group...."

The likelihood of anyone from Amada-kun's world arriving here is....well, Ken doesn't know whether it's even a percentage that can be calculated, as he doesn't know the summoning criteria (and one of the numbers he might be dealing with is "infinity"). But just in case. For his friend.

Ken will remember that name.