After a Foolish Omega Became the Villain's Cub

Yan Beibei has always been a rather slow little kid, taking longer than most to learn anything.

He speaks slowly, is great at tripping over nothing, and can be lured away with a piece of candy by any passerby.

When the adults confirm that Yan Beibei is an Omega child, they become even more worried.

This kid is so silly, and such a pretty Omega. What if he runs into a bad Alpha someday? He'll get sold off and still help count the money!

After he transmigrates into a book, the silly Beibei becomes the notorious villain's little-kid counterpart, who shares his name.

According to the story, this child is evil by nature and incredibly smart. At just five years old, he manages to fool an entire powerful family.

Though he's only a fake young master, he takes advantage of how adults let their guard down around children and easily returns to the main household, usurping the rightful place of Yan Wanzhou, the true young master. Yan Wanzhou is bullied by everyone and grows up miserably.

Of course, as a villain, Yan Beibei meets a terrible end too.

Once grown, Yan Wanzhou turns completely evil. He destroys Yan Beibei, the fake young master, along with the entire Yan family, and Yan Beibei ends up starving to death in the street.

System: Come on, Beibei! Your goal is to defy fate! Villains always win! Take down the true young master and become the greatest villain in the universe!

Beibei: OVO? What did you just say? Could you say that again?

The wealthy Yan family welcomes a new member: a beautiful little Omega with big, dewy eyes.

News outlets across the country go wild, claiming that this Omega child is the Yan family's real young master, lost long ago, and that Yan Wanzhou, an Alpha, is the fake.

Fortunately, Yan Wanzhou has already been warned about Yan Beibei's wicked nature.

His eyes darken as he stares at the tiny Omega, gripping the little military knife he always carries.

But...

The next second, the pretty Omega toddles over to him and gives him a bright, silly grin.

"B-Big brother! I'm Beibei. Let's play together!"

Yan Wanzhou: ?

This isn't how the story went.

Later, everyone knows that the Yan family, a top-tier clan rife with power struggles and tangled relationships, has changed. They've become harmonious.

Every member of the Yan family has the same darling: Yan Beibei.

An enemy family assumes Yan Wanzhou has been replaced by Yan Beibei and must be suffering neglect and abuse. They expect him to seek revenge against the Yan family someday, so they try to win him over.

But when they turn around, they see the young Yan Wanzhou looking aloof and impossibly refined, with his arms wrapped tenderly around the very true young master he's supposedly sworn to hate.

Yan Beibei looks completely clueless as he swings Yan Wanzhou's hand in his own.

"Brother Wanzhou, can you play with me during the holidays? I can bake you little cakes to say thank you."

Yan Wanzhou remembers Yan Beibei's last attempt at cooking up a disaster and his cool expression turns green for a moment.

But seeing the Omega's hopeful little eyes, he eventually sighs and rubs his forehead.

"...Fine."

*One-on-one romance, childhood sweethearts. A silly, naturally oblivious protagonist x a gloomy love interest with a thousand schemes. The romance is a major focus. A story of growing up and healing, where a naturally innocent person is the perfect foil to a schemer.

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