System + spatial powers + combat skills + winning back his wife + slacking off + the whole family dotes on her + a heroine who starts out wooden and emotionless (she falls for her husband after their arranged marriage, but only on her side)
Yu Bao'er, an outstanding employee of the Space-Time Administration, finally gets a vacation, only to be tricked into the 1970s.
Yu Bao'er just wants to eat and have fun. She doesn't want to work, so she finds ways to slack off and take it easy.
The vacation world is too backward? No problem, as long as there's good food.
A vacation turning into a mission? That's fine too, she can settle down and enjoy her retirement.
To get out of work, Yu Bao'er finds herself a husband's family. Her mother-in-law, sister-in-law, and younger sister-in-law all dote on her. Even her little nephew adores her, and the family often sends money, ration coupons, and food. She thought she'd found the perfect life of doing nothing.
Who knew the director who'd been exploiting her would turn up here too?
He even wants her to follow the army. No way. She'll put it off for as long as she can. Home is much more comfortable than the military.
Her family wants her to take the college entrance exam? No way. Studying is too hard, and she can't take any of it.
Making money, though, is worth considering. All she needs is to recruit a few underlings, and her standard of living will improve too.