Similarly, if Lumian took the initiative to put this gold coin in Charlie's pocket, it would not be unlucky if he used it without noticing it for a while.

As the original owner of the gold coin, Lumian picked it up and naturally it would not be affected by the "transfer technique".

The two simple ways to trigger the "Transfer Art" are to put it in the pocket and let the target steal it, and pretend to lose it so that the target can pick it up for the purpose of possession.