MTL - One Piece: Wudang Baiye, Deputy Captain of the Straw Hats - Chapter 228

Silas Blackwood wakes up with a machine in his chest – his missing mother's parting gift to help him survive the war with the Fae. This “system” grants him bizarre abilities: neuromancy (magic of the mind), biomancy (magic of the body), and essomancy (magic of souls and essences). Oh, and it fused a leviathan's mana core into his body. Because why not become part sea monster?At Arcanium University, a military boot camp churning out mage knights, Silas finds himself targeted by rich brats who think being born with a silver wand up their ass makes them special. When they leave him for dead, Silas decides it's time to show these spoiled kids what real power looks like.As Silas grows stronger, he discovers he can upgrade himself by absorbing essences from magical beasts and demons. Just when he thinks he's got a handle on things, Silas learns his mother's alive, and now he's got a new mission: a rescue that'll take him and his friends straight into the depths of Hell.

This is a world where science and magic coexist.

Some people here seek powerful magic, and some seek eternal truth.

A science tyrant who came from another world, started as a little librarian, with magic in his left hand and truth in his right, kicking the door of the new century with one kick.

Some people call him the forerunner of magic, some say he is the founder of science.

Some people describe him that way.

In the new century, Blair is a symbol of evil.

- Description from novelbuddy

He was on his way to buy some beer to celebrate his acceptance as a civil servant when he was suddenly isekai’d by truck-kun.

Cthulhu Gonfalon is a story about a man who woke up in another world. After a drink over his loss in a game, Sui Xiong ended up in the middle of the sea. Surprisingly, he now found out he no longer existed in a human shape but in a spirit state without any flesh. In order to survive and find a way to return to Earth, he then searched for a body to accommodate his spirit. After several confrontations with some creatures under the sea, he decided to settle for a jellyfish flesh. This Jellyfish was extraordinarily huge. With its tentacles, it caught others’ spirits to nurture its own power. In this world, Sui Xiong wasn’t only matchlessly powerful but he also had an ability to cast magic. With this gifted ability and combined with his knowledge from the civilized world on Earth, he could help a deceased person resurrect, change a person’s look, and do tons of other crazy things that he didn’t know.