Assassin (Foreign Shielder - Akagi)

Assassin is an Assassin-class Servant summoned by Ritsuka Fujimaru in the One Piece multi-series crossover fanfiction, Foreign Shielder, also acting as a main protagonist.

Background
Assassin's True Name is Shigeru Akagi (赤木しげる, Akagi Shigeru), a legendary gambler and Japanese mahjong player in the Japanese underground who is widely renowned by the yakuza even today. He committed suicide in 1999 at 53 years old, not wanting to lose himself to Alzheimer's, making him a shockingly recent figure for the Holy Grail to summon.

Appearance
Shigeru, as a Servant and in his earlier years in life, is a young Japanese male with pale grey if not pure white, with sharp facial features and slanted fox-like eyes. He is almost sickly pale with a lean and lightly muscular frame, usually wearing a short-sleeved navy blue button-up, black tank top beneath with jeans and standard dress shoes. He always has a black glover over his right hand and thick black marks on his left arm much like those of a criminal from the Edo period that turn a glowing and vibrant red when he is going to use his Noble Phantasm.

Personality
Akagi's lack of concern for life and death, profit and loss, and common sense, and his stance on the games themselves and his desire to maintain his beliefs is unique in how he stands by it compared to his comrades and peers. His intelligence, wit, luck, and mental prowess are all so out of the ordinary that he is often compared to the devil.

He is a genius at mahjong and gambling in general, but he does not have a greed for money or materialistic desires. Even if he wins a fortune, he doesn't care for it. He doesn't get along with others easily because of his apathetic and manic nature, having been a lone wolf who built a legend of his own by going through many scenes of carnage. He has his own unique view of life and death, understanding he is a heretic who has no desire for life and no fear of death, he describing himself as a "half-dead man."

He has a sincere approach to his games and his conviction that he prefers earnest battles above all else has not changed over time. He is very pensive and cautious but does love challenges, frequently engaging in debates with Archer, or playing mahjong together.

Relationships

 * Ritsuka Fujimaru


 * Overall, Shigeru is far from an obedient Servant. He is well aware of his disposition and role, but he despises being told what to do most of the time. Usually he is very insubordinate and rather wild. However, due to Ritsuka's friendly, understanding and respectful nature, he has been tamed by her somewhat. At the hands of her genuine admiration and appreciation for "a monster like him," he has grown fond of her. Though he is usually very quiet and apathetic, he is now comfortable with openly admitting she is trustworthy, to him at least, since the yakuza couldn't touch her so long as she had so many Servants by her side, including himself. But he's still not very obedient.


 * Shigeru is relatively and wordlessly protective over Ritsuka, the girl reminding him of Osamu Nozaki, a friend from his life, except much more brave and willing to take risks. Her brazen and passionate mentality is something he finds quite amusing, often egging her on just to see her get into a fight, knowing she will probably win. He has a lot of faith in her abilities as a person, as a magi and as a Master. Still, Shigeru does not follow instructions most of the time, but he knows they are both aware he's not about to stab her in the back.


 * He is much like an older brother to her, a sentiment that shocked him and others at first but he seems to not mind her calling him "brother" (兄さん, Nī-san) or simply "Shi" (シさん, Shi-san). Most of the time Shielder is the one roaming with her but Shigeru, like Archer, will take any presented opportunity to spend time with her.


 * Shielder


 * Both Shigeru and Shielder, Genzo Wakabayashi, are like Ritsuka's family. As Ritsuka's first Servant, by default Shielder has the respect of the girl's other Servants. However, Shigeru did not hold this regard, wanting him to do something that earned it. Genzo respected and appreciated this and after fighting together more and more, the two grew began to thankfully respect one another. The two hold an odd sort of brotherly bond, more like equal siblings, though, rather than one being older and one younger. They understand each other very well, instinctively.


 * Archer


 * Shigeru and Archer, Lord Desslok, trust and respect each other. They often engage in mind games, gambles, puzzles, and strategizing together. As a combined force, the two are an intelligence powerhouse difficult to overcome. Shigeru managed to convince Desslok to learn to play Japanese mahjong, seeing a potential strong rival in the man, and the two play matches frequently. As one of Ritsuka's longest-time Servants, Shigeru is the one Desslok approached for advice on talking to her, knowing the Assassin would quickly deduce why he'd asked. He did, of course, but didn't seem to mind at all, wing-manning the entire process from the shadows, amusedly pleased when it was a mission success.


 * Rider


 * Shigeru and Rider, Susumu Kodai, don't get along very well because of how much Shigeru reminded Susumu of an adversary he'd fought in life, Lord Desslok of the Garmilan Empire. This version of Susumu stems from before the Garmilans allied themselves with humanity, meaning the Rider still holds animosity toward the blue-skinned race as well as anyone who reminds him of them. Shigeru in the meanwhile does not care much for Susumu. "All bark no bite," as he'd once told Ritsuka. Despite Susumu having been an actual hero when he was alive, Shigeru is more powerful than him, possessing both the Demonic and Divine traits because of his reputation for being both a blessed and cursed child. Because of this Susumu is constantly very irritated with him but again, Shigeru doesn't care for him so it doesn't bother the Assassin much.