Considering I can’t even trade between characters on Final Fantasy XIV or some free to plays (easily anyway) I’m glad Tree of Savior has any account-side trading system to begin with.
the most common is that MMORPG games have released trade, the token system already the trade bar and can not trade items between own characters ,soo hard
Conquer , Tibia , Ragnarok , WoW , Elder Scrolls Online, ArcheAge, Atlantica Online, TERA, Metin2, all games trade is free … etc… etc…