I'm Very Happy After Marrying the CEO Husband According to the Agreement - Chapter 148: A Man’s gotta Have a Cause.

Being a nobody from a poor district of the Federation, Nick is a sixteen year old boy just trying to find his place in the world. When he finally gets his shot to enter the Beast Domain upon turning sixteen, he jumps at the opportunity to finally make something of himself — to carve out his own future.His goal? Survive. Hunt. Earn enough money to finally support his little sister back home and bring them out of poverty.But to a naïve young boy like Nick, the world is far more sinister than it seems — leaving him no choice but to adapt or die.To a poor young man like Nick, though, there was only one choice he could make.Follow Nick as he navigates these obstacles and carves out a future for himself and his sister, all while uncovering the various mysteries that shroud his worldview in darkness.

Jiang Chen accidentally traveled through and started his comprehensive journey.

The world is tentatively scheduled: Naruto – Attack on Titan – Blade of Demon Slayer – Sword Art Online – Detective Conan, etc.

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In the Naruto world, Jiang Chen obtained the apprenticeship ten thousand times return system, as long as he taught his apprentices, he could get a correspondingly high return reward.

As a reward, Jiang Chen taught Hinata the black coffin he brought from the world of the god of death to Hinata.

During the Chunin Exam,

Neji: “Abstain, Hinata, you are not fit to be a ninja.”

Hinata: “I don’t want to run away, Brother Neji, let’s have a showdown! The turbid coat of arms is faintly revealing, and the unruly and arrogant talent… The Ninety of Destruction: The Black Coffin!! !”

Everyone: “You call your brother on the lips, but you actually kill him. This girl is too scary!”

(The introduction is weak, please move to the text~)

- Description from novelbuddy

Ham Dani, a normal student whose hobbies were to read novels.

Roland died and transmigrated into the body of the third son of a Baron. Having reincarnated, at first he looked forward to the grace of the system or any other golden finger; alas, it seemed not everyone was lucky.In the end, he accepted that those were fantasies, whereas this was reality.Being the third son, he couldn't inherit land according to laws; however, he had a bit of warrior aptitude suitable to become a knight.Knowing that this might cause trouble in succession later, his father enrolled him in the army.Several years later, he became a 3rd-rank knight in the Beginner Stage and was going to be promoted but was injured when he tried to save the commander of his battalion.Amidst that, he received shocking news about his family's demise due to a monster tide, leaving him alone to inherit the barony.Weighing the pros and cons, he decided to escape from the risky venture and settle in a poor backwater barony village to lead a peaceful life; however...Just when he thought it was over, he awakened the Children's Blessing System.[Host's child detected, Family System activated.][Begin testing the child's aptitude.]“What, for real?”