Aki Dragneel

Aki Dragneel ("full name: Akimoto Dragneel") also know as "Master Aki" or by his title as "The most powerful swordsman of the world" is a character of Senran Kagura: The Black Swordsman series, he is the husband of Katsumi Dragneel, the father of Fuyu and Hansuke Dragneel, the father-in-law of Asuka Shimada, Daidõji, Rin and Homura and also the uncle of Yuuki Kõtetsu.

Appearance
Master Aki is seen as a young man despite being fifty year old, he has brown hair, brown eyes and wear a traditional kimono.

Personality
Master Aki is kind and relaxed, he like teaching his pupils new things and learn them how to fight, he is good father and do anything to protect his family if they ever being threat. He also love his family so much that he will do anything to protect them, he is also strict when it comes to teach them the way of their family and can lose his temper easily when his home got half destroy or any of his childs got hurt. But inside of him, he's hiding the sadness that he's been lived over the years following the disappearance of Katsumi Dragneel which is the main reason why during training he is so strict toward his pupils even his childs.

Background
Aki Dragneel commonly known as Master Aki by his pupils is a Master of Martial Art and Sword Skill, he is also the Father of Fuyu and Hansuke Dragneel and live at Osaka for several years.

He has teached his sons how to fight and learn the mastery of the sword as well as the will of the Dragneel family since nine years ago, Aki was also aware of Fuyu's sudden departure to find his loved one and Hansuke who follow him as well, but to make sure he doesn't make anything risky.

He is also the owner of Dragneel Dojo who is located at Osaka and act as teacher for those who to learn the will of the Dragneel Family.

Power & Abilities
True to his title as "the most powerful swordsman of the world", Aki is an extremely powerful swordsman, who can overcome any threat that come upon him, his powers is so high that even Fuyu and Hansuke combined couldn't defeat him in a one on one fight.
 * Immense Strength: Due to his multiples training and experiences in battle, Aki possess an overwhelming power that he fully master, he can eradicate an entire legions of enemy, defeating a yoma general and a lot more, his powers are so overwhelmed that it surpass those of his sons Fuyu and Hansuke and even his daughter-in-law and her niece Asuka Shimada and Yuuki.
 * Immense Durability: Aki proved to be highly resistant to any kind of attack, he can survive all type of situations and getting out of it unscratched.
 * Immense Speed: Aki possess a overwhelming speed that greatly surpass those of Fuyu and Asuka.
 * Master Swordsman: in nature Aki is a powerful swordsman whose skills surpass greatly those of his sons Fuyu and Hansuke, as he is capable of blocked any attacks of his enemies cutting them down at high speed and prove to have a incredible mastery over it.

Special Powers
Aki possess several shinobi powers but unlike his sons, he possess more than one element as he possess Lightning, Water, Earth, Fire, Light and ice powers to create special attacks that he mastered over the years.

Lightning Power

 * Kaminari ōra ("Lightning Aura").Aki's body begin to be enveloped in lightning and attack his enemies by opening portals of light and rushing at him at high speed repeatedly before finishing his move by stabbing his katana into the ground summoning a column of light that confuses them.
 * Raikō Danmaku ("Lightning Barrage") Master Aki rush at his enemies who put themselves into a defensive position, he then use his katana to hit them two time before throw multiple swords towards them, the damages taking by this attack are critical.
 * Hakai-tekina kaminari bāsuto ("Destructive Lightning Burst") He raise his hands into the air and unleash a extremely violent burst of lightning at his enemies who were in front of him, the effect of the attack was so brutal that it can literally destroy half an army that can appear in the area.
 * Kami sandā hanketsu ("God's Thunder Judgement") an attack that Master Aki use in his Lightning Form, he raise his katana in the air and gather a lot of lightning energy, once gathered the sword begin to glow brightly and Aki rush his opponent at lightning speed summoning several lightning pillars in the process, the enemies who tried to counter it get hit brutally by his sword and end up paralyzed as a side effect.

Earth Power

 * Chikyū Piasu Ken ("Earth Piercing Fist")
 * Chikyū Funsai Ransu ("Earth Crushing Lances")
 * Hakai Chikyū Damu ("Destructive Earth Barrage")
 * Chikyū no surudoi ken ("Earth Sharp Swords")
 * Chikyū no seinaru hashira ("Earth Sacred Pillars")

Water Power

 * Hakai-tekina Bīmu no Kasukēdo ("Cascade of destructive beams")
 * Mizuya no Ame ("Rain of Water Arrows")
 * Mizu no Yari no Hadō ("Wave of Spear of Water")
 * Mizu no Tsubasa ("Wings of Waters")
 * Eien no umi tsunami ("Tsunami of Eternal sea")
 * Piasu mizu no hashira ("Pillar of Piercing Water")

Fire Power

 * Honō no hakai-tekina tatsumaki ("Destructive Tornado of Flames")
 * Jigoku no honōnoken ("Swords of Hell's Flames")
 * Eien no honō no hashira ("Pillars of Eternal Flames")
 * Hōō no tsubasa ("Wings of the Phoenix")
 * Junsuina honō no ryūsei ("Meteor of Pure Flames")
 * Eien no honō no rengoku ("Purgatory of Eternal Flames")

Special Forms
Master Aki over the years possess several form which he gain by mastered all of his respective elements and when transformed give him the powers to surpass even gods themselves, each forms that he take has a pair of angelic wings on his back, there's six form that he can take.
 * Lightning Form: Ten kaminari no kami ("God of heavenly lightning") Master Aki use this form against Stiyl for the first time after the terrible events of Osaka and the yoma invasion, his appearance greatly change as his hairs and eyes became gold, a pair of angel wings appear on his back and his katana transformed into the chaotic lightning katana.