After the Supporting Female Character Refuses to Be Cannon Fodder [70s]

Both leads are strong, with the female lead utilizing the male lead.

Trigger warning: The female lead smokes, has high combat ability, and will fight the male lead.

Note: 1. The female lead is not a virgin, the male lead is. The female lead believes it's her second life, but it's actually her third rebirth. 2. This is a fictional setting; historical scrutiny is rejected. If you read it, assume it's fictional. A super thick one-sided arrow, no breaking up the main couple.