It's a great story, the world is developed really well, i love how the hole story doesn't revolve around a single MC where he has to do everything alone. The characters growth is very enjoyable and the alchemy explications and images provided by the author are very cool. I'm hooked :)
Best there is, the story is a constant uphill exiting journey that leaves you wanting more, you get fond of all the characters and enjoy their progressive.
Leo had never seen such bullshit