|“||I'm willing to be slightly underhanded in the pursuit of a positive workplace atmosphere.||”|
Masashi Mamiya (間宮雅司 Mamiya Masashi) the "Mage" (手品師 Tejinashi) was once a human salaryman who dabbled in stage magic in Hagane City, Japan. He was turned by a vampire around 1994, and he began drinking the blood of humans.
After the vampire who turned him perished in a forest fire in 1999 (approximately), Masashi was left without a master. Exhilarated by his newfound freedom, Masashi drank the blood of ten humans that night.
He proceeded to travel across Japan, and began mingling with other vampires. Eventually he made his way to The Organization in Europe, and became the subordinate of Watt Stalf (acting as a negotiator).
Masashi is a man who worships the strong and looks down on the weak. He desires power of his own, and almost matches Watt in terms of pettiness. He is very much a brownnoser.
Though he now has supernatural powers of his own as a vampire, Masashi is very fond of stage magic and continues to practice it to this day.
He is currently dating the sole female member of The NEET Squad.