Cost Sequence: Closing

Sequence Potion: The source is unknown. It first appeared in 2001 and is circulated on the black market. After the injection, a power will be awakened randomly, and an irrevocable "price contract" will be bound at the same time. The serial number is 1-99. The smaller the number, the stronger the ability and the heavier the price. There are approximately 120,000 known signatories worldwide, with a mortality rate of 37% (most of them died from backlash or upgrade failure).