My Husband, Codename REAPER

Vera Grant, CEO of Grant Tech, marries a man declared KIA for her inheritance. Bodyguard Carl Wren saves her—he is her dead husband Ethan Cole, codename REAPER, the underworld's top assassin. Hunted by the blacklist and Cross Industries for her Sentinel system, they fight to uncover his team's massacre, turning a fake marriage into real love.