Honenheim

Honenheim, Alchemist Guardian
Juno is the magic city before the cataclysm. Hohenheim was the 3rd dean of the Magic Academy in Juno.

He built an academic system for alchemy the likes of which the world had never seen before or since. His studies took him to new levels of understanding of the world, endless possibilities abounded, but he suddenly disappeared leaving his achievements behind.

The world was shocked, but none more than Hohenheim himself. His latest studies were of 'soul composition of humans and devils'. His unfortunate choice of a subjects were the Feared Devil Baphomet, and his own soul.

What he wanted is to fuse Baphomet's powerful magic into a human body to create a new human race. As he prepared his greatest experiment everything looked to be correct, but the result was terrible.. As his soul was not able to resist fusing to the more powerful Devil body, he mind left him and only an unreasoning beast remained killing all his assistants and fleeing into the forest.

‘I could have succeeded in my alchemy if I had time to fix my formula'

He continued his research in hiding within the forest and awaited the Day of Despair without anyone knowing his whereabouts.

You... don't seem to have your formula right yet, have you.

How about letting me teach you all about alchemy

But on one condition

I want you to finish the alchemy formula where I left off.