The Sweet Blood (2021)

Set within a hospital. A vampire works as a doctor. A battle between good and evil as well as immortal love takes place.

Both of them have main focus are Vampire.
Same actor (Kim Ji Woong) who play vampire role.
School/Campus setting.

Both are mini dramas with vampires.
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Both are webtoon adaptations.
Vampires and a interspecies romance with some potential but things didnt exactly worked out.