Princess Rona, Fight On!

 is the 7th episode of the Endro~! anime.

Summary
Wanting to know more about Yusha's friends, Rona decides to spend some time observing each of them. After witnessing Seira's responsible nature and collecting cartados with Mei, Rona accompanies Fai on a wilderness trip, where they participate in a melon eating contest. When Fai reaches her limit near the end of the final round, Rona manages to eat a melon of her own to bring her team to victory.