Shi Jian's girlfriend mysteriously drowned in a room without water, so he opened a company called "Almighty Brother" to take on mysterious and unusual cases in order to find out the truth behind his girlfriend's death. Shi Jian accidentally picked up a magical key that can reach any place. There are many objects like this, such as vanishing cream that can change its appearance, a ring that can manipulate objects, a pendant that can control water, etc. Shi Jian realized that his girlfriend's death was related to these fantastic objects. As he got deeper into the incident, the true origin of the objects and the conspiracy behind them surfaced...