Ikki Kurogane vs Ouma Kurogane

Ikki Kurogane vs Ouma Kurogane is a battle between Hagun Academy representative Ikki Kurogane and Ouma Kurogane, a member of Akatsuki and Ikki's brother. The battle took place just before the start of the Seven Stars Sword Art Festival.

Prologue
Ikki, who is returning to his hotel room from the Ichiban Boshi restaurant, is walking through a park when he calls out to an individual who has been secretly following him. This individual is revealed to be Ouma Kurogane, who has come to meet Ikki.

Ouma orders Ikki to withdraw from the Festival because Ouma believes that the rivalry between Ikki and Stella, is, in fact, hindering Stella's progress. Ouma wants to face Stella, at her full power, and thus Ikki must withdraw from the Festival so Stella can focus on fighting stronger opponents like Ouma. Ikki though refuses, which leads to Ouma deciding to take Ikki out himself. Ouma then manifests his Device and attacks Ikki.

Battle
Ouma attacks Ikki with his Noble Art Shinkuuha, which sends invisible air slashes at Ikki. Ikki though easily avoids these attacks by following the movement of Ouma's Ryuzuume. Ikki's and Ouma's swords then clash, with Ikki quickly retreating from Ouma's incredibly powerful slash. Ouma then uses Mukuu Kekkai, which starts to quickly drain Ikki's oxygen, only leaving him with a minute to fight. Because of this Ikki decides to activate Ittou Shura, and attacks Ouma.

All of the sudden though Ikki's movements freeze, and he is only barely able to defend against Ouma's attack. Ouma marks this as an aftereffect of Ikki's match against Edelweiss. Ikki believes this to be "punch-eye", a symptom that sometimes causes fighters to be temporarily frozen when fighting, resulting from a traumatic or stressful experience, like Ikki's confrontation with Edelweiss.

Ouma then activates Kusanagi, intending to end the fight. Ikki marks that he can't defend against Kusanagi, but he is luckily saved by Yuudai Moroboshi, who uses Tiger Bite to destroy Ouma's Kusanagi. Ouma then retreats, not wanting to fight against the Seven Stars Sword King.

Epilogue
Ikki has a brief discussion with Yuudai, who reveals he came to return Ikki's student datapad, which was left in Ichiban Boshi. Ikki also thinks about his possible case of "punch-eye", which could even end his career as a fighter.