“…The hidden spell within this is ‘A Punishment of a Killer’.”

[...]

“This is a spell that allows each wire to have symbolic features of being a person’s lifeline, and then punish the person that destroyed these wires”

The red mist box that surrounded Acqua expanded twice or thrice, like a continuous bomb explosion in water. Each explosion triggered another chain of explosions. Each of the explosions continued to chain up, and from who knew when, the exterior of the red mist box had become distorted as a bunch of grapes.

[...]

“Then let me tell you my attributes.”

On the other side of the screen, a gigantic man shadow was swaying about.

[...]

My attribute is the ‘Divine Mother’s Mercy’ that negates any punishment. Even if they’re strict and just final judgement, they can be overturned. It even directs whether a person is going to Heaven or to Hell. No matter what kind of guilt one has, the punishment will be nullified. To me who has this attribute, your attacks are meaningless. I don’t even need to move a finger to ignore this sin of ‘killing’.

Toaru Majutsu no Index vol.16