Ep. 50: Ataru Meets Mendou's Sister Ryouko Amidst Forbidden Romance Plans
Aired on November 24, 1982

Ataru encounters Mendou's younger sister, Ryouko, who is described as both stunning and manipulative. She invites him to meet her for a romantic rendezvous reminiscent of Romeo and Juliet. However, Mendou and Lum oppose this arrangement and prevent the meeting from taking place. The situation highlights the tension between Ataru's interest in Ryouko and the protective or obstructive actions taken by Mendou and Lum to stop the encounter.
Episodes
- Ep. 46 · Students Rally Against Ban on Off-Campus Fast Food Lunches
- Ep. 47 · Mystery unfolds at a remote Japanese fossil site during a group picnic
- Ep. 48 · Princess Kurama faces a new challenge after being awakened by Ataru
- Ep. 49 · Ten Spreads Cavities by Biting Ten People to Visit Ataru's Class
- Ep. 50 · Ataru Meets Mendou's Sister Ryouko Amidst Forbidden Romance Plans
- Ep. 51 · Ten shelters a kotatsu spirit, causing stairway blockage and family conflict
- Ep. 52 · Ataru rescues an injured bird that becomes a raccoon to repay him
- Ep. 53 · Ataru secures a bathhouse attendant position expecting to harass women but faces unexpected consequences
- Ep. 54 · Lum Organizes the Class's End-of-Year Party While Ataru Questions Her Literal Interpretation