You Can't Escape! The Return of the Obsessive Martina!

Martina swears to take something from Lina and tries to do so in a disguise but fails when stealing her jewel that explodes on her.
The gang decide to rest at a spa (hot spring looking but isn't) sorta of place, where Martina manages to steal Lina's bandana while sleeping. Martina then proceeds to curse Lina (thanks to Lord Zoamelgustar.)
The next morning, when Gourry stole Lina's food, she attacks him, and gets hit herself.
Xellos, then gives a demonstration saying that someone cursed Lina, and if she hurt (or touch you) she get the touch back. By proving this, Xellos forces Gourry to grab Lina's boobs. She then kicks him in the groin, only to have the pain return to herself.
Martina shows up and explains she did this. They run away as Monsters suddenly shows up and attacks them.
Martina while running accidentally drops a knife, breaking the spell. Lina does a fireball, sending Martina away.
After a hard days work, Amelia suggests to Lina they'd go to a hot spring next time so th

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S02E07 - Sudden Cooking! Follow the Phantom Dragon!