Quick transmigration + male-male/female-female romance or straight romance + System + shipping couples + all-around original female lead + slacking off
(Remember to check the content warnings for each volume!)
Lu Nanfeng, a powerful master of the mystic arts, had been alive for so long that even she had lost count. A long life could get boring, and whenever Lu Nanfeng was bored, she would find something new to learn to pass the time.
But she had lived so long that there was nothing left for her to learn. Then a System, picked up by her little disciple, said it could take her to transmigrate between worlds and ship couples. She could ship couples from all kinds of male-male romance or straight romance dramas. The powerhouse herself would step in just to make her ships a little sweeter, and then sweeter still.