[Quest: The Ninth Trickster God's Surprise Present for Lightning Gods!
A quest to bring the surprise to the lightning gods caused by the high killing intent(Based on The Ninth Trickster God's Surprise).
You can permanently gather anti-lightning powers by killing the believers, disciples and any individuals related to the lightning gods!
You can build up 'Lightning Resistance' for your body.
You have yet to kill any lightning god believers.
More can be unlocked with an appropriate strength!]
Kyoya didn't want to kill innocent people due to his origins and principles, but his wife hurt many people to come to the low world where he could start a new life.
If the husband were to start his journey in some higher world or even divine lands, then he would be dead already! Thus, his wife made an essential sacrifice and so he was willing to do the same.