Quick Transmigration: The Childbearing System Makes Me Woo Heirless Powerhouses

[Quick transmigration + Childbearing System + No fixed male lead + Both leads are virgins + Heroine wins the male leads' hearts] (If this isn't your kind of story, please don't come here just to make your presence known. It'll be better for both of us. Thanks for understanding~) Su Qingyun died young. To make up for never getting to see the countless worlds she had missed, she willingly bonded with a Childbearing System. She must complete missions and absorb luck to come back to life. Her missions: win over powerful men with no heirs and leave them descendants. If she fails, the bond will be severed and she'll be right back in her coffin. "World One": Spoiled heiress VS her marriage partner's adoptive father (the completed story can't be edited, so his identity has been changed from adoptive father to an uncle of an older generation) √ "World Two": Sweet, soft girl VS gloomy guy in a wheelchair √ "World Three": Vicious ex-wife VS icy military officer (period setting) √ "World Four": Gentle senior student VS obsessive junior student ✓ "World Five": Rich woman VS broke man √