Minji kisses the small wounds on Handong’s fingers, and then bandages them carefully, even though she doesn’t need them anymore: a vampire’s saliva is pretty much a cure-all, but Handong guesses it’s the thought that counts. 

Minji is convinced that Handong is a witch, even though she simply goes as 'magician'. But there must be something going on there - how else would Handong know how loud Minji's heart is beating?