Karen Bee, Part Five Episode 5

Tsukihi and Tsubasa tell Araragi about the meeting between Karen and Kaiki Deishuu, who infects Karen with the Wreathe-Fire Bee after a monologue about his beliefs on the importance of money. After Tsubasa leaves, Araragi helps to freshen up a still spirited Karen, who doesn’t want to pass on the fever to him. When Araragi asks Shinobu about it, he realizes that the curse can actually be passed onto him to cure Karen.