Eighteen years after being reborn into another world, he awakens his golden finger and only then discovers that he's in the Harry Potter universe.
Aisen resolves to become an unremarkable professor at Hogwarts. But his golden finger turns out to be surprisingly powerful: he can extract and copy supernatural traits from magical objects.
So Aisen extracts the spellcasting trait from a wand.
And the immortality trait from the Philosopher's Stone.
Aisen had hoped to live an ordinary life in the wizarding world, until he extracts the time-travel trait from a Time-Turner and travels through time for the first time...
