Become a God Through Skincraft! I Refine My Female Master into a Contract Beast

[Decisive and ruthless + skin vessels + commanding others + an explosive power trip + contracted beasts] After transmigrating to a world of magic, everyone studies elemental magic, while summoning is dismissed as the most useless branch. Others spend a fortune on magic crystals only to contract low-level monsters. I, however, awakened the one-of-a-kind Art of Skin Vessels. By refining skins into vessels that cross worlds, I can summon the mightiest experts from other planes. That supreme female master from another world is aloof and has extreme cleanliness standards. Even the greatest prodigies in her world aren't allowed to touch her sleeve. Bound by the laws of her plane, she can't descend in her true form. The only vessel capable of containing her soul is a skin I craft. So what if a goddess is arrogant? If she wants to take form in this world, she can only inhabit the body I make for her, becoming a contracted beast who obeys my every command. I can even wear their skins, taking on countless forms and charms. With thousands of spirit skins at my command, I'll ascend to become the greatest god in all the heavens.