第 66 集: 阿守的生日爭議導致拉姆缺席，櫻花介入其中
1983年4月20日 播出
When Ataru flips out over Lum for forgetting his upcoming birthday, she goes absent from school for days and only comes home late at night. This causes both Ataru and Lum to become upset, as well as separately confine in Miss Sakura. (Source: Wikipedia)