My, my, he was a stubborn one. A bit unfriendly too, but that was bearable. Lumen had the pleasure of coordinating with even less pleasant people than this stranger, and so he remained unfazed by the blonde's standoffish behaviors.

"And I want to form a party with you." He emphasized, as if to prevent the blonde from weaseling out of it.

"Are you saying that I should exhaust my resources before seeking help?" A direct question to the blonde. Lumen may be young, but he wasn't incompetent. "I have exercised such methods, but he's still missing. That's why I'm asking for help."

In other words, Lumen would like for Mikaela to stop being difficult and give him a hand. He wasn't asking the stranger to do all the work. Just most of it.