Aki Hayakawa

Aki Hayakawa (アキ) is a Public Safety Devil Hunter, working under Makima's special squad. He has a contract with the Curse Devil and Future Devil, and a former contract with the Fox Devil.

Appearance
Aki Hayakawa is a man with medium-length black hair that he keeps tied up on the top of his head. He wears a suit and tie. He also wears earrings and usually carries his sword on his back.

Intro arc
When Hayakawa is first introduced, Makima orders Denji to work with him. While they are patrolling the city Hayakawa becomes annoyed with Denji asking whether Makima has a boyfriend and pulls him into an alley to beat him up, as a warning that if he doesn't take Devil Hunting seriously he could end up dead. Denji then fights back, kicking him in the groin multiple times and stating that he would risk his life to continue living the way Makima has shown him. Once they get back to the Devil Hunters Headquarters, Makima assigns Denji to Hayakawa's squad.

Abilities
Curse Devil Contract: The nail he wears has an extremely powerful ability which enables him to summon the curse devil, he achieves this by stabbing the desired enemy 3 times with the nail. But in order to use it, Aki's life would be significantly shortened due to the contract he made.

Future Devil Contract: Gives Aki the ability to see a few seconds into the future. He uses this to predict his opponent's oncoming attacks and plan accordingly.

Swordsmanship: Aki is a proficient swordsman, wielding a sword as his primary weapons when fighting devils.

Former Abilities
Fox Devil Contract: Aki Hayakawa had a contract with the Fox Devil. In exchange for feeding him a part of his body Aki could enlist his power in combat. Aki lost the ability to summon him after he used the Fox Devil recklessly against the Katana Man.
 * Summoning: Aki could hold up his hand and say the word "Kon", causing the Fox Devil's head to appear over his target's body, swallowing them whole or cutting them to pieces where they would intersect with the Fox Devil's bite.