Luna has finally had enough- Celestia's constant ribbing over the years reaches its peak when she accuses the Lunar Princess of having no sense of humour. Luna's humour is just a little 'dated', that's all...
On the eve of the Summer Sun Festival Celestia has gone missing, and it's up to Luna to find her. What awaits Luna, however, is not only her sister, but a long awaited confrontation of her past.
Transition is never easy. And the past can be difficult to handle alone, especially as the mind wanders before sleep. But for the first time in a millennium, Luna is no longer alone.
After starting the day by raising the Sun, Celestia was sure that nothing could possibly ruin her day. Unfortunately for her, something had happened to her sister. She really thought Luna would have learned after the last time.
Celestia realizes that Luna is very sad after Discord's petrification. Celestia, concerned for her sister, she is determined to discover the reason for Luna's sadness.