I Am the Debt King in the World of Spiritual Energy Recovery

At the beginning, you travel through time as a fugitive and survive the attack of giant beasts. What kind of hell is this beginning? Bite! Your system is activated! [Weapons from strange planes...] [War armor from a strange plane...] Redeem? Change! Change them all! I want to be the master of this world! This is the end of the world. [Ding, your remaining balance is insufficient! [Your monthly repayment date is the 15th] [If it is overdue, it will be deleted immediately! ! ! Wait a minute, I won't change the system! I won't change it! !