Quick Transmigration: I Bound Myself to a Rich System and Now I Lie Flat

[Quick transmigration + male-male leads + adorable child + lighthearted comedy + heartwarming]

After an accident, Yu Jingyuan died in a car crash. By a twist of fate, he bonded with an incredibly powerful System. It told him he could do whatever he wanted, and that he could even decide what kind of System it would be.

Yu Jingyuan thought he had hit the jackpot, but then the System added, “You have to help take care of a little System...”

“What did you say? A little what? What System?”

“You deserve a System toddler.”

“...But all I know how to do is fall in love.”

“If you can't take care of it, you'll die.”

And so Yu Jingyuan went from world to world, falling in love and taking care of a System toddler along the way. He was glad the little one was well-behaved; otherwise, he really would have thrown it away.

World One: After becoming a celebrity with a terrible reputation, he's caught on camera by paparazzi living with his younger brother and gets hit with rumors. To clear his name and make money, he joins a livestreaming show about raising kids, where he meets the person he likes most.

World Two: He transmigrates into the leader of a bizarre demonic cult. The title of cult leader sounds impressive, but in reality, he spends every day lying around in the cult. Then he finds a deranged man outside who tries to steal his younger brother. To keep his brother safe, he puts up with the man and keeps him by his side. Well, then...

World Three: He transmigrates into a world of beastfolk, becoming a penniless beastman with nothing, forced to make everything from scratch. The only food is meat roasted until it's black as charcoal. To save his stomach, he has to go out looking for food. Can someone explain why rice grows inside fruit...?