The naming ceremony is a long-term process. It takes about a week to name a child god and the god of the name can only name a person once a week.
Viktor knew everything about the ceremony so he prepared beforehand. He also told Adonis about the ceremony rules so that he could prepare himself when the time comes.
The naming ceremony has three rituals.
The first one is baptism, the second one is bestowing a name and the last one is sacrificing a living being.
The ritual may sound like a normal friendly ritual but it's not. One has to go through a hellish process to make his name listed on the void list as a god or a demigod.
It's also the same for Viktor and the others.