Well, Sena does live with Hau, so it's natural he'd find himself helping out Hala. That being said, he kinda looks like a scrawny little kid compared to the burlier men and Pokemon there, so how is he even expecting to help out?

Well, his team sure do look prepared for the task. Monta's strong enough to lift and carry things alongside his fellow fighting types, and Portus' psychic powers also make moving things a far easier process. Sena himself seems to be acting more like an errand boy, rushing back and forth between different tasks with his usual absurd speed.

Just...make sure he doesn't accidentally bump into you with that rubble he's carrying, though...

"S-Sorry about thaaaat!"