Mina's childhood friend is getting married, who also happens to be her ex-boyfriend's sister. Now there shouldn't be any reasons for her to decline; except there are way too many of them.

After finishing his witch training years in a small town, Kyungsoo moves to take care of his ailing grandfather and take over as the local apothecary and put his knowledge of herbal remedies to good use. Chanyeol is one of his new regular customers, who comes up with more and more outlandish problems/requests just to spend more time with serious Kyungsoo.