You can have monster/machina/Ruins Dungeon battles instantly at "Adventure" tab created in your Airship.
You will be able to use all Machinas and Heroes for Adventure even if they are in field battles, but battle spree will not be available.
You should achieve First-Kill at Adventure, then you can have battle spree to the same enemy.
If you clear all main battles in the Chapter, you can get Chapter rewards and proceed next one.
※ You can get same amount of field hunting reward from adventure.
※ Some buffs & Hot Time Boosts are not applied.
※ Chapter Rewards will be given automatically once you clear the chapter.