Kyokujitsu Isshin-ryuu

Kyokujitsu Isshin-ryuu (旭日一心流, lit. Rising Sun Unification Style) is a style of swordsmanship passed down in the Kurogane Household.

Description
The Kyokujitsu Isshin-ryuu is a swordsmanship taught in the Kurogane Household since the era of samurai and taught to several children in the household. Though due to him being born as an F-Rank, Ikki was never able to join the other children in their training sessions, however, Ikki learned a number of techniques after watching the training session and seeing his elder brother, Ouma Kurogane who was training by himself even when everyone else left even the teachers left.

Techniques

 * Kyokujitsu Isshin-ryuu - Hono Ikazuchi (旭日一心流 · 火雷, Rising Sun One Mind Style · Fire Thunder): A technique, in which the user performs a diagonal slash with one hand, then it is followed by a strong punch using the other one.


 * Kyokujitsu Isshin-ryuu · Jin no Kiwami - Amaterasu (旭日一心流・迅の極・天照, Rising Sun One Mind Style · Highest of Swiftness - Amaterasu): A secret technique, in which the user utilizes all their muscles to deliver a fast strike at godspeed.


 * Kyokujitsu Isshin-ryuu · Retsu no Kiwami - Amatsukaze (旭日一心流・烈の極・天津風, Rising Sun One Mind Style · Highest of Sequence - Amatsukaze): A secret technique taught in the Kurogane Household for several generations, where the user performs a continuous series of one-hundred and eight slashes, which overpower the opponent with strength and speed.

Users

 * Ouma Kurogane
 * Ryoma Kurogane (Possible)
 * Ikki Kurogane (Blade Steal)

Trivia

 * Due to no one in the Kurogane Family not wanting to teach him anything, Ikki stole glances from the training sessions of the other children. However, he was able to learn a number of techniques by watching Ouma train on his own even when everyone left.
 * Kyokujitsu references to the flag used in Japan for both the Japan Self-Defense Forces Japan and Japan Ground Self-Defense Force.