MTL - Prodigiously Amazing Weaponsmith (Don't Mess with the Dark Princess) - Chapter 4858 Grand Pharmacist's Event

The Empress who dies in torture, An Rushuang is her name. After she wakes up, she finds herself has time-travelled to when she was twelve years old, but she would turn into Major General’s white horse at night. He is a general who orders about the winds and clouds on the battlefield, and she is a little girl lives in her boudoir seclusively.
She endeavors to change her fate, and he spared no effort to win every battle. They meet each other every day, well, it’s night to be accurate. Is that a dream or not? She pleads to marry the seignior to win peace for her family, only to find he is the one she is going to marry.
“Growing old with you under the same roof is my long-cherished wish”, thought them both.

- Description from Novelupdates

This novel is also known as Only I Level Up

10 years ago, after “the Gate” that connected the real world with the monster world opened, some of the ordinary, everyday people received the power to hunt monsters within the Gate. They are known as “Hunters”.

However, not all Hunters are powerful. My name is Sung Jin-Woo, an E-rank Hunter. I’m someone who has to risk his life in the lowliest of catacombs, the “World’s Weakest”.

Having no skills whatsoever to display, I barely earned the required money by fighting in low-leveled catacombs… at least until I found a hidden catacomb with the hardest difficulty within the D-rank catacombs!

In the end, as I was accepting death, I suddenly received a strange power, a quest log that only I could see, a secret to leveling up that only I know about! If I trained in accordance with my quests and hunted monsters, my level would rise.

Changing from the weakest Hunter to the strongest S-rank Hunter!

- Description from Novelupdates

Xie Yunshu’s father, who was made a marquis because of his military exploits, finally thought of taking the two of them and their grandmother to the capital. She was still in her mother’s womb when her father left home to join the army, but now she is a seventeen-year-old girl.

It is said that in the Hou’s Mansion in the capital, his father had a county magistrate, Ping’s wife, and a pair of children born of him and Ping’s wife. County owner Ping’s wife’s mother’s family is powerful, but Xie Yunshu’s mother is just a peasant girl.

After crossing, Xie Yunshu smiled slightly, we have the melon eating system in hand, we know everything, everyone is good, if it is not good, then try it!

- Description from novelbuddy

Protagonist travels between different anime worlds to right wrongs and uncover his reason for being along the way.