Pegasus's Secret: The Boy Who Protects the Dream World

Standing as the 158th chapter of the 1990s series and the thirty-first entry in its SuperS run, the episode hinges on a spell cast by Palla-Palla of the Amazoness Quartet. Her magic reverses the ages of the two lead heroines, stretching Chibi-Usa into a grown young woman while shrinking Usagi into a little girl. The newly aged Chibi-Usa is thrilled at first, delighted to finally look mature, yet the mood turns to alarm once she realizes the winged Pegasus stops responding to the pleas she sends toward him.

The age reversal leaves Chibi-Usa towering over her companions, an unfamiliar sight that catches the other guardians off guard. Because the change severs her link to the dream world, her summons for the flying horse go unheard, stripping the team of the ally who normally powers their strongest counterattack. The chapter is best remembered for introducing Helios, the young man whose spirit takes the shape of Pegasus, positioning him as the quiet keeper of humanity's dreams that the title celebrates. It also stages the sole use of Palla-Palla's Opposite Orb, the very technique that scrambles the heroines' ages.

The creature of the week is PeroPero, and the episode debuts both Helios and the Opposite Orb attack. It closed out the broadcast year as the final installment to air in 1995, and it remains the only time Palla-Palla ever deployed Opposite Orb. In Poland, the localized title accidentally matched the one given to an earlier episode about Makoto and a pegasus. Its English dub, under the banner Pegasus Revealed, reached North American viewers on November 6, 2000, well after the original Japanese broadcast on December 23, 1995.