第 23 集: 小松先生研發青春藥物，阿拉蕾與恰奇加入機車黨

23

Once Senbei hears Midori is coming to his house, he decides to make a rejuvenating drug to make him look young. Once he drinks the drug he becomes way too young!! Arale and Gatchan join a biker gang, but actually they are milkmen!! (Source: Wikipedia)