Arakawa Under the Bridge (2010)

Season 2: Episode 7

The Arakawa residents decide to do a physical checkup to prepare for their trip to Venus, and Ric and Star end up trying to 'outsick' each other to get Nino's attention. Later, the girls spend a week in Sister's basement, though after six days everyone drops out except Nino. When it's the boys turn, Ric tries using P-ko's logbook to strike up a conversation, with embarrassing results.