Race: Modified Human Affiliation: Union Occupation: DA-5 First Appearance: Chapter 107  Hammer [is] a modified human and a member of the special forces team within the Union known as DA-5.   Although he has violent tendencies at a level near Shark's (although never expressed facially), he is logical enough to avoid trouble and can use situations to his advantage, no matter how cowardly it may be. Even though he is arrogant of his strength, also accepts his defeat when facing a stronger opponent in order to survive. He does not hesitate to take hostages or harm even females. However, to his misfortune, when battling Seira , he believes that since she is a female, she will be an easy defeat. This [was an] understatement of Seira's powers.  As a member of DA-5, Hammer can be assumed as skilled fighter with or without his weapons. Hammer is a weapons specialist but can also indulge in combat if needed. He has been shown to use a wide variety of explosives when battling, which became a problem when arriving in South Korea for DA-5, because as Tao stated, the city is peaceful and full of civilians so he could not run free firing explosives as he usually likes to do during missions.  He also used a very heavy type of gun when battling Seira.﻿ Other of his equipment include a poison gases and sleeping gases. Like other members of DA-5, Hammer can also improve his skills by eating the drug, 'D'. 

When Cadis Etrama Di Raizel or Rai, as he is known, awakens after 820 years, he discovers a modern world he simply doesn't understand. Once an extremely powerful member of the Nobles, a race of nearly immortal and powerful creatures, Rai decides to start again as a high school student at Ye Ran High School, founded by his former servant Frankenstein, who is somehow still alive after all these centuries. Frankenstein’s goal—to help his powerful, vampire-like master learn about human life and culture as he protects him from the modern forces Rai cannot fathom.
 
Rai's somewhat peaceful new life is about to be disturbed by The Union, a secret organization interested in using his powers to further their own malicious goals. 
 
When past clashes with present in this innovative take on familiar dark fantasy tropes, Rai must do everything in his power to ensure the Union doesn’t control his destiny, and that he can continue to integrate himself into this new, confusing modern world...
 
(Source: WEBTOON Unscrolled)

For 820 years he had slumbered with no knowledge of mankind's advancement and scientific progress. The land which he once knew has become an unfamiliar place with new technology, attitudes, and lifestyles. Upon awakening, Cadis Etrama Di Raizel (aka Rai), seeks to familiarize himself with this era. He locates a loyal servant of his, Frankenstein, who is currently the principal of a South Korean High School. Rai decides that this school is the perfect place to help him learn about the modern world, enrolls, and begins associating with a group of good-natured students in order to 'blend in'. But this new world is no safer than the old; and the dignified, bewildered, technologically inept Rai finds himself embroiled in adventures both ridiculous and dangerous.

[Profile (Aksent)](https://aksent.co.jp/profile/yamada_hiroki/)

Not to be confused with CG Director [Hiroki Yamada](https://anilist.co/staff/146087) (山田裕城).