Frontline party members have their doom counters reduced by one on their first turn of combat. Because of this, the actual doom count doom deathlinks apply are increased by one (1 -> 2, 3 -> 4). However, backline party members and aeons do not have this issue, so they unintentionally start with the increased doom counts.
Frontline party members have their doom counters reduced by one on their first turn of combat. Because of this, the actual doom count doom deathlinks apply are increased by one (1 -> 2, 3 -> 4). However, backline party members and aeons do not have this issue, so they unintentionally start with the increased doom counts.