The chapter is named Mission, but we don't get to learn what the mission is. I would have expected either to have the group been told when they got the mission or have some separate scene when the lead person checked the details of the mission.
It might not be important for the future plot, but the there is no reason to reveal that to the reader.
The general feel of the story is kind of anime/manga in style in a kind of upbeat style. I think I could work quite well with some work.