Goodbye Season Urusei Yatsura : Season 4 Episode 12

Ataru confides to Megane that he is "giving up", and has chosen him as successor. Megane is elated as he imagines having Lum all to himself. Shinobu, having overheard their conversation, imagines that with Ataru out of the picture, there would change in the class' balance of power would result in her losing Mendou to Lum, causing repercussions far beyond Tomobiki High. She then conspires with the popular girls from the surrounding schools to stop Ataru and protect the status quo.