This Japanese Monogatari Isn't Lame - Chapter 19 - . This is a misunderstanding!

Legend says that Star World’s million Star Names are passed on in the form of young maidens as famous existences in the Three Thousand Worlds.Henceforth, Chen Mo heroically says as he brandishes his massive weapon at the heavens and shouts towards the beautiful but aloof Chen Qingzhi, towards the tyrannical Caesar, the tsundere Xiang Yu, the yandere hi*ler, the extraordinary Chen Tuan, and other girls.“My big stick’s hunger already can endure no longer…”

This story revolves around a boy who was sent to a dark, mysterious parallel world in the body of his beautiful senior sister known as Lily. The lone girl ran into the night parade of a hundred ghosts the very day she arrived; seeking survival amongst the warrior’s dispute in a chaotic world, and forging her own demon sword! This is an unimaginable other world adventure!

An ordinary student, a wretched peeper, a cowardly teenager with a kind heart. In a terrorist attack, he inherited the knowledge of countless elites, embarked on a path of God Jagged Tu…

He is an artist!

He is a mathematician!

He is a psychology Doctor!

He is a master of fighting!

In fact, he is a man

Taken off raw site:

A wretched, dirty young man is working during the summer when he was caught up in a mysterious explosion. After that explosion, the young man is then left with the memories and knowledge of dozens of the world’s experts.

He has changed, his heart has become cold, iron-blooded. He became a killing machine, his mind turned mechanical, calculative. Everything goes according to his plans and calculations!

In this magical, slaughterous world, a door is opened for him…

- Description from Novelupdates

[The time-travelling heroine who never turns around when speaking vs. the aristocratic self-effacing hero who always gets slapped in the face and is reborn]

Everyone said that sooner or later the second wife of the Shen family would be killed by the adopted daughter.

The melon seeds and benches are all ready, just waiting to watch the show.

Who knows——

Not only is he not dead, he is also getting better and better!

The eldest son became a well-known miracle doctor; the second son became a general; the younger son was smart and well-read, and became the number one scholar at the age of fifteen…

As for Shen Nian, that was even more remarkable.

She is the legitimate daughter of the Duke of the country, and everyone dislikes her for living in the countryside.

The boss of the apocalypse has traveled through time.

He has strange powers, possesses three types of supernatural powers, and is extremely lucky.

Her biological father is the Duke of Jian Zai’s heart, the leader of the Golden Scale Guard is a poor little boy she saved casually, and the bad old man who follows her is a weird doctor known to the world…

–

When they heard that Prince Xiao was leaving Zhongdu, the elite circle went crazy with joy. They prayed to gods and Buddhas in the hope that this man would die outside.

But not only did he come back fine, he also brought a girl who was even more arrogant than him.

Everyone laughed at Shen Nian for being a vulgar farm girl.

The Holy One sneered, “…you call a person who makes a people rich, vulgar?”

The prince chuckled, his eyes flashing with a ferocity that made people feel heartbroken.

The next day, the person who gossiped behind his back either had his face ruined or his leg broken…

Shen Nian stuck his head out to watch the show, “Tsk, I told you that you would be punished if you spread bad words about me, but you didn’t believe it. You should believe it now.”

Xiao Shizi, who deeply concealed his merit and fame, nodded and smiled warmly and harmlessly, “…I think everyone believes it.”

If they didn’t believe it, he could make them even worse.

- Description from novelbuddy