World of Final Fantasy (PS4) - Intervention Quest - The Ice Bridge

Intervention quests are another type of side quest in the game. These allow you to visit events through time that have happened to the other champions & help them win the battle. You don't get to the control the champion which is a shame but you instead fight for them. You can access these by going to Nine Wood Hills & through the white door in the central area to the tea-room. Make sure you collect the rewards after you have completed a quest.