Yoko is more inclined to co-operate than any of the other survivors. She sticks especially close to Kevin and David King, but will follow everyone, except for Jim. She will also refuse to help if he is in trouble. Yoko is the only character who Alyssa will follow reliably. David will often follow too, as will Jim. It is assumed that the latter isn't aware of Yoko's attitude toward him, although he is her worst partner.