The world tree, which was planted in the territory of Sirius city of the Snow Kingdom, had been regarded as the existence of Sirius city library.
Normally, no one would stay here except Mike and the book demons.
The room on the top floor of the world tree was directly used by Mike as his practice room.
The so-called practice room was actually a large bedroom with a bed and a bathroom.
Mike sat cross-legged on the wooden boat, with his hands forming a seal. The mark between his eyebrows flickered with a bright light, sometimes as tiny as fireflies, and sometimes as bright as the silver moon.
Mike's practice of the elementary force had progressed a lot by the accumulation, together with his own heritage. Now it was quite effective. His cultivation base of elementary force alone was comparable to that of a level-4 magical beast.
Considering Mike's physical strength, he could defeat a level-6 master in a second and go into a draw with a level-7 master.