MTL - The Salty Little Cannon Fodder Was Targeted By the Prince - Chapter 566 I'm familiar with this routine

“He is the entertainment king who is in charge of everything. Been single for years, he had zero scandal. One day, a woman and a girl turned his life upside down.

The little cutie held him tight, not letting go. “”Handsome uncle, you look very much like the daddy I have lost for many years!”” Huo Yunshen felt depressed. “Me? Daddy?!”

The little cutie proudly pulled her mommy over, “”Mommy, I have found a long-term meal ticket for you, handsome and gullible.””

Xu Xiyan smiled at the elegant man.

Recalling the accident five years ago, his face sank. “”How dare you steal my DNA?””

She laughed. “”Not steal, just borrow!”” The man took her in his arms and warned in a dangerous tone, “”Woman, should I get what’s mine back, with interest?””

She stood on her toes. “”Yeah, how about another baby?”””

- Description from Novelupdates

A 30-year-old NEET is reincarnated into the body of an otaku that choked to death on instant noodles. As he comes to grips with his new life, he realizes that this world is subtly different from Earth. The denizens of this world are far better looking, and this new world also possesses futuristic technology as well as mysterious Yin Yang masters!

Science and Technology Library: The supreme state of science is theology; an accidental rescue, let Chen Mo get a technology library that collects endless technology, the story begins…

- Description from xbiquge translation

It was only after Su Yayan's death that she realized that she was a malicious cannon fodder female character who became a scapegoat in a Mary Sue story.