The Evil God System of Purcell

The protagonist traveled through time and became Sorenson, who had 10% of his combat power and only had 3,000 combat power. I just said familiar with the body. System: "Defeat Pony within 30 days." How should he defeat Manpeipuni, who has a combat power of 100,000 and seven seals? —As long as there is a system. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.