This was a vision of Kanji after the boss fight with Chie's Shadow, back at home, exhausted, stressed out and writing up some ground rules for the future rescue team.

In brief:
Rule 1: Don't go into a potentially dangerous situation alone.
Rule 2: No school uniforms in combat!
Rule 3: No real weapons in public / 3A: Keep them in a safe place.
Rule 4: Split proceeds from missions. Keep your equipment up to date.
Rule 5: Keep your mouths shut about shenanigans apart from in designated spots.