Interesting, as this panacea can turn the drinker into a slime, and the protagonist uses this to invade th body of a nun. He even gets to merge with her soul, and it ends with a wedding. On the other hand the artwork is quite good.
And now we wait, his pixiv account was terminated(or i couldnt see him because i needed to be premium) and i don't know if the author had a group, or something like that and was waiting for the 3 flask and possibly continuation to the story.
@tuais The creator, zzzccceeexxx, is back at it again with a new accound and relesed the normal (Chinese?) language post of Panacea C Here https://www.pixiv.net/en/artworks/119724659 , Waiting for the Eng/JP version though