Zero's deceased friend gave him a chip before he died: "Send it to Vault No. 7."
Then he died. Odd job.
The price is: amnesia, being hunted, and being penniless.
He met three people in a dilapidated restaurant truck——
A mechanic who can only use his left hand,
A mad hacker who relies on black systems for revenge,
A rich young lady who ran away from home.
Four people got together and opened a grocery store.
Selling instant noodles, repairing prosthetics, and beating back those who chased him one by one.
Later they discovered that the chip contained the truth about the entire shelter being covered up.
Later they discovered: this shabby grocery store,
It has become a place that none of them want to leave.
Concept: In the wasteland, the hardest thing is not prosthetics and weapons, but the warmth that people are willing to stay and tell each other the truth.