Orario's Rabbit twins (not a story an idea for on.)

There have been a couple of fanfics where Bell has a brother (one fanfic has sengo muramasa as the brother but only has 1 chapter), there are also fanfics which reference/hint at Bell being the reincarnation of the hero Argonaut (currently not canon confirmed) or ones that make bell remember the past of Argonaut. But what if we combine this- During the Apollo Familia war game, in the time given to prepare for the war game, Bell's Twin Brother Argo (reincarnation of Argonaut and has all the skills and abilities he had in the past but make him around high level 5 or mid-level 6) shows up now that he finished taking care of remaining business left behind by their grandpa (doesn't know its Zeus yet) and joins the Hestia Familia and helps Bell in the war game. How will the city of Orario react to the new member of Hestia Familia and the 2nd Rabbit?