Pregnancy Is Too Much For The Villain - Chapter 104

Rob was a high-level hacker and wanted by many government organizations because he leaked the secrets of many countries. So he didn't dare to come out of his hiding much. Since he was alone, he lived a difficult life, which that he found the joy and the excitement of life in only two things: The rule of the Internet, and the anime world. One day he came across an interesting advertisement on his personal computer that turned his life upside down.[Ding!] [The art publishing system is being prepared...] [The system is ready!] From that time onwards his goal became to draw One Piece manga in the pirates' world!

A never-before-seen event has occurred in Ancheng! What happened? The Crown Prince of Di Jue unexpectedly has a son! Mo Chuxi is baffled—he’s still unmarried! Where did this son come from? Having a son is one thing, but what’s this? There’s also a daughter!Inside the narrow car cabin, Mo Chuxi blocks the woman, “Lady Yan, can you please explain what’s going on? Hmm?”“...”One morning, Little Baozi is holding Big Baozi’s hand, blinking his innocent watery eyes as he looks at Mo Chuxi.

Being given a chance and reincarnated is nice and all, yet why do I have to become that male friend who just watches the protagonist flirting with his harem?---World: Kaguya-sama: Love Is War - Hyouka ----

One day, Luo Jian woke up from his sleep and found himself in a locked chamber where the door and window were all sealed. A note with a few lines written on it was tacked to the wall: “Escape from this room within an hour, otherwise, you will die.”

There is a sequel called Reincarnation Night (轮回之夜) that takes place in the same universe but has different main characters

- Description from Novelupdates