Episode 157 is titled " Panic in Sentou " - " Panic in public baths ". He makes us discover a Kyosuke accidentally exchanging his spirit with Hikaru, and all find themselves with Madoka in public baths, where separation between men and women is in order. I place this story well before volume 18 of the manga. Indeed, the triangle always seems constituted, and no clue is given on the events that rush into the last volume. This episode is certainly the most bare of all the manga. It reflects somewhere Izumi Matsumoto's evolution towards KOR, an evolution that we also see in episode 158,as well as in the novel "Shin KOR II". But there is nothing hentai in all this, I reassure you. Note the new physiognomy of Madoka that we notice especially by his hairstyle more bluish than ever and his brown eyes, not emerald color (do not be fooled by the cover of the magazine, it's Madoka but it has yet another look, that of episode 158). Probably on the occasion of episode 157, Izumi Matsumoto will have wanted to reiterate the graphical experience started (unsuccessfully at the time) in volume 15 of the manga. Indeed, it is in this volume that he wished to give a new face to Madoka. But at the insistence of fans and readers who did not agree, he had to back down. Hikaru, meanwhile, remains the same.