- Official name：坂本梅太郎
- English name：Umetarou Sakamoto
- Chinese name：坂本梅太郎
- Gender：Male
『Umetarou Sakamoto』
Homeroom teacher for Rihito and Aoi's class. His true identity is a vampire hunter.
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Homeroom teacher for Rihito and Aoi's class. His true identity is a vampire hunter.
