The black technology empire started with a debt of one billion

Cao Mang thought he could enjoy life in this life, but he didn't expect to start with a debt of one billion...
"Ding ~"
[One hundred thousand prestige points can be exchanged for liquid lens]
[[-] prestige points can be exchanged for off-screen fingerprints]
[[-] million prestige points exchanged for Pegasus system]
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