Ep. 2: Kazuki desafía a Yuuji a un día sin indecencias mientras cuida la casa

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With the parents of both households stuck on a South American island for an indeterminate time, they ask their children to take care of each other. Kazuki refuses to admit the dirty-minded Yuuji into the home, unless he manages to spend the whole day without doing anything indecent, so they have a competition. (Source: Wikipedia)