This episode serves as a "slice-of-life" bridge, establishing the new status quo for Issei Hyoudou after the rescue of Asia Argento.
Having lost her place in the Church due to the "God is Dead" revelation, Xenovia reincarnates as a Devil and joins Rias’s peerage. High School DxD Episode 6
This episode concludes the "Excalibur of the Moonlit Schoolyard" arc with a massive revelation that reshapes the series' lore. High School DxD Episode 6