fictionalized Isuzu Erga Hybrid/Hino Blue Ribbon Hybrid (HL2) of Toei Bus (which currently does not operate hybrids of this model/generation), wearing the new "full flat bus" (i.e. fully low-floor) livery used only on Scania 2DG-NB4X2BVJs
registration plate suggests assignment to Senju depot (the only one in Adachi ward)