Contract Evil God, I Am in Charge of Thunder in the Tower of London

In 1840, London was foggy and the curtains were lowered. Two worlds overlap here: beneath the brightly lit surface is a wizarding society that follows "contracts" and "prices." Wilford Greenham, the descendant of an ancient alchemy family, lost everything overnight. In order to avenge her father who turned into a monster, she made a contract with an ancient evil god and mastered the original thunder that killed the god.