Naaah I agree, the chapter is kinda choppy, and since it's too long for each update we already forget the story 😅
Their "adventure" this time is just a fight and a dismantling practice for Dinosso kids.
The dinosso couple, Butler, and Jean rush deeper to fight a group of stronger monsters that are close to their position, unexpectedly meeting with Hyle, and rush outside since it's no longer safe.
In ch.5 and ch.26 It's explained that the butler and Ashe are on the run. Her brother sends assassins a couple of times, and Jean just witnessed it one time.
In ch.25 Chris, Dean, and Retze are renting the house that Jean bought and living together.