At the time of 2032, Cryptocurrencies became world's key currency, and people started to plant a chip that works as a wallet behind his ears for easy payment. So cyber crimes like hacking and misusing other person's chip also started to happen, and Dr. Hume, boss of a criminal group, was also gathering Ethereum by hacking others using every way possible.

He invented a deadly blockchain virus to hack the wallet of those who have planted chip, and the virus' code name is "crypto parasite".

He planted virus into his own chip first and became the first Parasite friends. That night, Dr. hume gathered all 5 executives and said,

"I made a virus that can hack Ethereum blockchain, I will plant the first 5 source code into your chips so you could bring Ethereum from all the people who has planted the chip!" All 5 executives became Parasite Friends as the virus enters them. And the executives started to turn people into Parasite Friends by sending virus into their chip using all means possible like giving away ethereum.

As soon as the people recieve Ethereum, they got infected with the virus and instantly started turning into Parasite Friends.