In a nick of time, Sakura Ougi no jutsu is performed which signals Ria's arrival with the rest, from the top we see a big butterfly cloaked with the sakura leaves, making it's airplane landing fashion and it goes back to the butterfly lands, after the landing. Ria just appeared with the rest in front of Hokage and told him, "Yeah, thanks for that, Hokage-sama. Looks like we are all gathered here."