The Only Player in the Wizarding World

Qin You transmigrated as a human test subject apprentice to a dark wizard, but has a player interface.

What, testing medicine on human subjects? That's a daily quest!

What, a century-long demon-hunting war? That's a battle quest!

What, a terrifying battlefield of the undead? That's a dungeon!

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Basically, someone transmigrates to a wizarding world, but is the only player.

I'll fill in the blurb when I have time.

Theme: I'm a human test subject