The Speedrun Manual of Miss Witch - Chapter 211

One day, I was summoned to this world.

Life is unpredictable. Her husband loved her stepsister, deposed her as Empress and even forced her son to death. In that Cold Palace, she was forced to drink poisonous wine. So in the next lifetime, she made a promise to never do good deeds and help others, to never step into the palace and to never become the Empress!

After spending half a year in the province, Cheng Yang took a luxurious cruise for seven days.
Accidentally hooked up with a CEO on the way.

Later, Cheng Yang found out that he was pregnant.
Just as Cheng Yang was preparing to secretly give birth to the baby, it was a coincidence that he fell asleep in the big president’s bed.

It’s impossible to run with the ball, his man is handsome and rich.
Must cling tightly and can’t be torn down.

- Description from Novelupdates

After dying prematurely from an incurable disease, Yuka Hikano finds himself in a mysterious realm filled with endless doors, each concealing divine gifts from powerful deities. He is not alone—others who have met the same fate of death stand beside him, unaware of the trials that await.They are put through various tests and eventually transmigrated into different worlds. But these worlds are nothing like the Earth they once knew.For Yuka, however, this apocalyptic world feels eerily familiar. It is a realm of endless war, devastation, and chaos—a world he once played in a game. Certainly not the kind of place one would wish to be reborn into.From infancy to adulthood, he must gather strength, knowledge, and allies to survive the horrors that lurk ahead. But when he awakens a system granting him a power beyond imagination, he soon realizes that blessings can also be curses.[You have gained Infinite Mana.]Infinite Mana...?What could possibly go wrong?