Defeat 125 experience-yielding Kindred monsters during Dark day or Dark weather.
You will obtain an Ingrimm (DMG:20, Delay 216) with DMG+17, Delay -6, MP+30, Mag. Acc. +10
Note: best place is Castle Zvahl Baileys killing the Kindred (for some reason, the Ahriman DO NOT count as demon kills for this trial, unlike Trial 162). Dark Weather can be uncommon, however. And while the Magian Moogle mentions the Demon family, only the Kindreds will count for the kills for this trial. Similarly there is a sword trial that only counts the Ahrimans for the kills, so it is not uncommon to find blue mages doing that trial.