Quick Transmigration Childbearing System: Every Male Lead Is at My Feet

[Quick transmigration + childbirth + sweet romance + System + a slightly calculating heroine, but not too much + no fixed couple]

Sang Yu never expected that after saving a child who had run into the road, she would get hit by a car and die.

As a wage slave, she wanted to drift off and see the grasslands.

To her surprise, a Childbearing System came to her, asking her to bear children for male leads who could not have heirs. In each world, she could earn a billion in prize money and points. With enough points, she could even get a new identity.

At the mention of a billion in prize money, Sang Yu’s eyes lit up!

She was in!

1: Gentle, romantic emperor who cannot have heirs vs. beloved concubine who understands him (he is not a virgin; she is)

2: Cold-blooded prince vs. concubine-born daughter serving as a substitute (both are virgins)