Wang Yi is reborn in a parallel world. Just as he's prepared to make his mark after 18 years of planning, a delayed golden finger appears, sending him to a low-magic world for three years. Using the golden finger's overclocking ability, he learns a vast amount of magical knowledge. After three years, Wang Yi is sent back to the modern world... What is the combination of magic and technology? Magic technology? Black technology? Troubling materials science problems are solved, and many mysteries become reasonable with the addition of magic. But when Wang Yi returns, he decides to first combine a captured vengeful spirit to create an AI to be his butler...