1. Vash, Nai, and Flora

Flora once believed she already knew what her life would be based on what her creator, Dr. Conrad, had told her. She thought she'd be traveling the galaxies along with the human colony, Dr. Rem, her creator, Dr. Conrad, and the twins, Vash and Nai. The promised life that would be found among the galaxies.

Soon that would all change after a shocking revelation that would lead to a turn of events, where Flora realizes that not everything is set in stone and would later have to survive the harsh lands of plantless life in No Man's Land.

OC Female (reader) x Vash x Knives love triangle maybe?
This is a story based on all Trigun source material so *SPOILERS* MxF