The Daily Life of the Inventor in Another World (R18) - Chapter 18: Hand Cannons and Aurora

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

He became a teacher at the best magic academy in the empire.
….For being mistaken for someone else.

In the world of dragons and snakes, the talented but congenitally sick martial arts master was reborn as the sole heir of the 19th-century Canadian manor owner. He thought he would make money by practicing boxing, but he took advantage of the industrial revolution to become a giant of the times. The opened template.

In the end, the original owner was a hopelessly sick and consumptive ghost! I am still a bastard having an affair with a gardener…

Wait, what’s up with the claw?

James Howlett looked at the bone claws protruding from between his fingers, and became more and more worried about his future.

- Description from novelbuddy

Following a regrettable teleportation gate incident, freshly graduated spatial mage Tila found himself in a strange bipolar world. On one side are the sexless humans, completely isolated from the rest of the world inside their domes. On the other side lies the bustling outside world, composed of a myriad of non-human species.Should he focus on the humans and teach them a thing or two about their bodies? Or should he mingle with the spirited outside species?Of course, he shall do both, by becoming the sole true interspecies trader!