I expected this after seeing Itsuki’s party.
The leader of Armour and them is Itsuki after all. Every action follows his code of justice.
Itsuki: “This girl did more than that other one who left half-way, but she keeps bothering me with the same question.”
Firo: “Come on, tell me. Heeeeey.”
Armour: “This bird! To think you have the nerve to annoy Itsuki-sama...!”
Firo: “Hm~? You want to play with Firo?”
Itsuki: “Stop it. She is not someone you can easily beat; she is the companion of a hero after all. So you shouldn’t be fighting.”