MTL - American Fame and Fortune - Chapter 831 legal fire

Xia Yan passed through to the world of Bleach and became an eleven-year-old boy. He was rescued by Renji and Rukia in the Seireitei, and he was studying at Shin’ō Academy, and he was a student of the same class.
He is a top student of the Shin’ō Academy, and he is vying for strength by various teams. In the end, he has entered the first team of secret mobile maneuvers.
He will use punishment to kill every person who tries to threaten the martyrdom and protect his loved one.

- Description from Novelupdates

A normal guy gets hit by a truck and isekai'd. Why? Because trucks are apparently some cosmic loophole. He decides to be a dungeon, because it sounds weird and interesting to be one. Is it? Let's find out.

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 dungeons, the “World’s Weakest”. Having no skills whatsoever to display, I barely earned the required money by fighting in low-leveled dungeons… at least until I found a hidden dungeon with the hardest difficulty within the D-rank dungeons! 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!

Guan Dounan traveled to the world of Conan, and unexpectedly found that he had a stand-in “King of Comedy” and became a stand-in messenger. However, this double actually looks exactly the same as that “little black”?

As the so-called stand-in messenger will attract each other, Conan is the stand-in messenger, Xiao Ai is the stand-in messenger, Kidd is the stand-in messenger, Xiao Lan… Oh, she doesn’t have a stand-in, but she has double A.

In addition to this, there are many stand-in messengers who choose to embark on the path of crime, and it is time to count their sins.

“Little guy, your ability is the most useless!”

“I understand, the ability of gin! It’s…”

“Yahahahah, it’s a stand-in of the same type as my comedy king.”

“Senior Guan! Hurry up and think of a way to use your invincible stand-in!”

“I Guan Dounan just want to live a peaceful life…”

(Original stand-in, based on the world view of Conan, the characters in jojo will occasionally make cameos)

(On the basis of the original case, the magic change is not limited to the pure stand-in ability, but also has supernatural, demon, and superpower elements. In short, it is metaphysics to the end.)

(Slow heat, although it sounds weird to say this, but in the early stage, I mainly laid various foreshadowings, so it will look a little dull)

- Description from novelbuddy