Kaijin Fighter: So I Have to Make Monsters, So What? - Chapter 10: Nepherage Rampage

After reincarnating eight times unsuccessfully due to a glitch in the netherworld, Jia Hao finally reincarnated in the world of Urban Fantasy, an eroge game that he played before. However, he realized the game was currently in the bad ending mode and he is powerless like a side character without any game system.

Skinny dude who blackmails girls? Check!

Fat Ugly Uncle who lusts after women? Check!

Blonde haired delinquent whose eyes are covered with bangs? Check!

As Jia Hao was wrecking his brain to how to change the plot, he found a mysterious pot that can take him into an ancient world, and the items he brought from the modern world transformed into heavenly treasures!

“Now, you dare to gaze at my women? My dear wives! Beat him to death!” Jia Hao ordered as he leaned back on the chair like a salted fish.

After choking to death on a watermelon, Rong Jiahui thought that she would enter the netherworld and be reincarnated.

But when she opened her eyes, she discovered, to her very horror, that she had returned twelve years into the past…

Looking at the beautiful and awkward “little brother” that would be conferred the title of Marshal in the future for outstanding military service, she almost let out a snort of laughter.

She firmly decided to hug the thigh of this little brother, and climb to the top of her life!

The plan was beautiful, but it had just one problem.

Why had this little brother… suddenly turned into…

A little sister…

- Description from Novelupdates

A third-rate painter in the past life, and a chaebol in this life.

I thought it was a rebirth flow, but it turned out to be a system flow. I wanted to rely on myself, but you let me use a plug-in.

“Ding! Congratulations on successfully signing in to Mao Lilan. You will be rewarded with a Dacheng-level “Karate”, which the host can receive at any time.”

“Ding! Congratulations on successfully signing in Gin Wine, and a reward of [Servant Contract], which the host can receive at any time.”

“Ding! Congratulations to Suzuki Ayako for successfully signing in, and you will be rewarded with a copy of “Cash Capability”, which the host can receive at any time.”

…

- Description from novelbuddy

Gou Liang was originally a small office worker of the Space-Time Administration Bureau but because of a weird questionnaire, he was sent to multiple worlds in order to complete a mysterious and arduous mission — to use the correct posture to awaken lord god.