Summaries: These are from Slowkingsley in the SerebiiForums/BulbagardenForums:
DP170 - Elite Four Bertha! Hippowdon vs Torterra!!
A boy Yooshichi, who encounters Satoshi and the group, is a novice trainer that says his important partner, the "Live Coal Pokemon" Magby, was left in the care of the daycare centre because it will become stronger. However, this daycare centre was a fake. Yooshichi is puzzled. But, as for this town, it seems as if there is anything to find out about pokemon matters, there is a person called Kikkuuno. The group suddenly meets with Kikkuuno in a section of the town.
(Not sure if Kikkuuno is a misspelling of Kikuno or fake-Kikuno, so I'll leave as is.)
DP171 - Dancing Togekiss! Pokemon Contest Princess!!
Satashi and the group, who are visiting Katakuri Town, went to observe an in session contest. Whilst there, a woman, Freesia, who discovers the appearance of Dawn, calls out and asks a favour of Dawn. She says that for just one day she wants her to trade places with the Princess. The group, head in the direction of the Origin of the Princess in order to hear her story. When there, Princess Iris, who sees she looks exactly like Dawn, says she has been longing for a chance, no matter what to go and want to try in a contest.