Watashi Gure te Yaru! Arale Bousouzoku ni Naru

Once again, Midori pays a visit to the Norimakis' house, when Senbei realizes that he has become a fat old man. He invents an elixir that is supposed to rejuvenate him, but Senbei goes too far and turns into a baby. He forces Midori to bathe naked with him and breastfeed him, and the trick seems to work.