Overall, it should be similar to the ability to control misfortune possessed by the anglerfish.
A [Misfortune] debuff would be imposed on the chosen target, causing them to start experiencing "bad luck" and possibly reducing some of their resistances.
Later, I will go to the Inner World to find two Ki-qi Tongzi and test the waters, which should allow me to fully deduce the effect of this skill.
Anyway, the overall feeling it gave to Kamiya was that it's an enhanced version of the previous uncontrollable [Blessing-In-Disguise Misfortune].
While the power increased, it also became freely controllable.
Kamiya was quite satisfied with this change.
Previously, while exploring the Inner World, Kamiyagawa tended not to directly deploy Zashiki. But now that the daughter is at least a Rank C Shikigami Tale, she is also considered an elite force with self-protection ability on the battlefield.