Spaces Eternal by Daniel Trump

Malachi Talon adventures through an interstellar war against a terrifying demon armada...only he's an engineer who hates violence, war, and combat of any kind. He has huge adventures, fights battles, saves lives, and does it without throwing a single punch or shooting a single shot of a gun. When demons bombard Chicago from orbit and kill his parents, Malachi takes a job working for the enigmatic and beautiful Ella Aerin doing engineering work on the high-tech battlecruiser the Kokoro. He loves her desperately, but she loves her marine boyfriend Braxton. Check out this romance adventure saga from schizophrenic novelist Daniel Trump - second in the V Max One series but also a standalone book.