While discussing event plans with the Eiji player, we realized we should probably make sure we were understanding this part correctly.

People who are not suffering from having visions or nightmares will be especially vulnerable to the new abilities and afflictions, specifically should those they know be under this condition. This could be due to bonds of friendship, familial, romantic, or any other kind of relationship. They do not need to be extraordinarily emotionally close to the afflicted for this to take effect. This means these people who are not afflicted will be more susceptible to mind control and will feel inclined to serve or defend their known party in question.

Does this mean that if Eiji were to end up branded, he would essentially be able to mind control Ritsu?