Shin Ryusei

Shin Ryusei (シン・リュウセイ) is Ramiris' Assistant.

Appearance
His braided black hair rested down his back, and he wears Chinese styled clothes similar to Damrada.

Various hidden weapons seemed to be concealed inside his pitch-black robe.

He has a skinny build.

Personality
He was taciturn, and what he was thinking was unknown.

Background
As one of the Otherworlder, or as some call them "Foreigners", he was enlisted as a First Lieutenant in the Eastern Empire army. He was one of the three people sent by Yuuki Kagurazaka to investigate Tempest's underground labyrinth.

Chronology
Shinji, Shin, and Mark were ordered to try to reach the bottom of the labyrinth by Damrada to see if there is a research laboratory or any other important facilities.

Zhen used his abilities to find and deactivate all the traps in the labyrinth. They were able to make it further than anyone else ever had, which caught Rimuru's attention. They were easily deduced as spies, but Rimuru and Co. simply observed them. Upon reaching the 60th floor, they were instantly defeated by Adalman and Albert, much to Rimuru's surprise.

They all find Tempest to be a very nice place to live and that it has a lot of the luxuries that they miss from their home world. When Gadra came to Tempest, they decided to follow him and defect to Tempest together. They took up the position to work as researchers for Ramiris.