Cumin was a Human male in the 24th century, the son of Hommun, he lived on The Armada where he spent his time either working on the farms or schooling. He had a brother, Kori, and a girlfriend, Astra.

Cumin had been accepted into Starfleet Academy, however, his father would not allow him to attend, as a result he became bitter, and resented his life as a farmer. In 2365 Cumin and Kori found a Romulan torpedo, laced with chroniton particles. They hatched a plan to use the chronitons to treat the crops and cause accelerated growth, giving them more free time. They took this idea to their father, who agreed, but then went further and sabotaged the chroniton formula to kill the crops, hoping the family would be forced to leave The Armada and find a new, more exciting, life elsewhere.

The plan was a success. So much so that Starfleet sent the USS Enterprise-D to investigate the crop failures. Data soon traced the chroniton contamination, but Cumin was content to keep him and his brother's involvement to himself and let his father take the blame. Wesley Crusher, who had met Cumin and his friends and figured out what they'd done, was not so happy to let the injustice pass and confronted Cumin. The two fought, and Crusher won, giving Cumin a black-eye in the process. Cumin then took responsibility for his actions and confessed what he had done to Captain Jean-Luc Picard. (TNG comic: "Space Seeds")

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