Its not the teleathy skill, which anybody can get. Charles' telepathy is unique, not only conveying his thoughts directly from his mind to another's without a spirit go between, which also allows him to use it with non-holders, but it also allows for separate conversations at the same time, and even joining three or more people together.
As a side note Charles' stats will never be high enough for even the simplest skill, since his own stats are the same as a Pawn. The stats on the sheet are Sophia's, which he borrows.
As a side note Charles' stats will never be high enough for even the simplest skill, since his own stats are the same as a Pawn. The stats on the sheet are Sophia's, which he borrows.