MTL - Start with Batman - Chapter 8 "Can't Play"

Young Master Lu says, “My wife knows nothing at all and has a bad temper. You’d better not bully her.” Gu Mang watches silently as this man warns everyone who comes his way.

The protagonist, Winnie (文尼), confesses his love to his childhood friend—the princess he’s been secretly in love with for years—but is brutally rejected in public. His heart shatters, he’s humiliated and ridiculed, and he collapses unconscious. When he wakes up, he vaguely remembers his past life’s memories and realizes he has transmigrated into the world of an otome game he played before. At first, he’s thrilled, thinking, “Nice! I must have been reincarnated as a villainous side character who disrupts the protagonist’s romance, right?” But then… surprise! He’s not just the villain—he’s the “Saintess”!

In the past life, he was an aerodynamic engineer of a well-known company, and in this life, he is a college student of a famous school.

When the two identities are perfectly integrated, what sparks will appear.

His life experience is also slowly uncovering the mystery, whether he can beat the tycoons of this era, and whether he can stand at the peak of world business.

- Description from novelbuddy

This is a world where a king is the most powerful.

Being a king make you can travel through the world and choose the strongest people in the sub-worlds as retinues

As long as countries are established in different dimension spaces, they can integrate their resources, land, civilization, and cultivation system into their own king’s world to expand their territories and accelerate the process of civilization.

Qin Yi soon discovered that these dimensions were familiars to him from his previous life.

in Naruto s world, the integration of ninja civilization, the whole people are ninja. into bleach world, conquer the world, expand the world map let the world evolve into a shinigami civilization.

Is this just finished? No, everything is just beginning!

Dragon Ball, journey to the west, Marvels, Pirates, all the sub-worlds, is the nourishment of the King’s world civilization!

The first subject he met was Gandalf

The first world is Naruto’s.

- Description from Novelupdates