[ Honestly? Wolfram is just here for the food. He is still feeling dizzy from getting his blood sucked, and if you pay enough attention, it may be possible for you to notice he looks a tad bit paler than usual.
Also, he isn't wearing a swimsuit. He already covered the wounds with band-aids, but the is hoping the t-shirt and the neck of the vest he's wearing may be enough to cover the band-aids.
He kind of hopes no one will see him there. He is not in the best of moods. ]