(This was been irritating me for the last few days, so what if the Video Game "For Honor" and DanMachi had a crossover???)
Me and DonOrbit talked about different ideas, but I still think this is the best idea and actually fits the anime style of DanMachi quite well... through I would have to refined my For Honor Warden to actually fit into the anime...
Through I think Bell and Hestia would have a good chance with the dungeons with the Wardens help.