And when the old characters do show up in Korra, they’re ghosts of their former selves.
Iyada oo qayb ka ah daraasad dhowaan, cilmi-baarayaasha Tufts University ayaa ogaaday in uu jiro dufan yar oo ka mid ah dufanka aadanaha, taas oo doorbidaysa noocyada kala duwan ee hadhuudhka ah ee alaabada badarka.