you should let one of your natives get captured so you can kill the guard and pick the decoy charm which makes next raids target the npc using it, doesn't seem to work for yona/man though but all of my raids are attacking my lv150 underground woman since she has the decoy charm
here's a picture showing them targeting a elder brother instead with the decoy charm equipped.
View attachment 3695997
and i can confirm that below 10 minutes the npc gets targeted for rape, objective change to kill guard instead of free npc.
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