Gokudou-Kun Manyuuki s01e15
Titre original : Temptation of the Deadly Gorgeous Sisters!
So the gang are all still where we left them back in episode 14... which is to say, amidst an identity crisis as all of them have inexplicably switched bodies. The unsightly creature Rubette has accidentally turned herself into cannot speak, and she's having no luck communicating her plight to (the not-very-observant) Gokudo. He in turn - hoping to find some way to revert Ikkyu back to his original evil self - uncorks a phial he nicked from Master Tei and instead gets a neurotic talking panda for all his trouble!
They soon stumble across Rayuka and Shikinka and fall for their 'drugged food' trick just as readily as Djinn did before them. Upon waking, the two are reunited with Djinn, who recognises Rubette despite her monstrous guise. However, before Gokudo can really get his fill of teasing her, they are struck by the disturbing realisation that the witch sisters have in fact imprisoned them and shrunk them down to doll size... apparently in preparation for feeding to their 'pet'.