Ikki Kurogane vs Sirius Vermillion

Ikki Kurogane vs Sirius Vermillion is a fight between the Hagun Academy student Ikki Kurogane and the Emperor of Vermillion Sirius Vermillion. It takes place after Ikki has been made one of Vermillion's representatives for the upcoming tournament between Vermillion and Cradleland.

Prologue
Prior to the fight, Ikki was chosen to become a representative of Vermillion in the upcoming tournament between Vermillion and Cradleland. Sirius, although being forced to agree to Ikki's participation, decides to challenge the boy to multiple trials. If Ikki doesn't pass these trials, he won't be able to participate in the tournament. Despite both Stella and Astrea telling Ikki that he doesn't have to participate in Sirius' made up trials, he decides to participate anyway. The first trial is a duel between Ikki and Sirius.

Battle
As the battle begins, both combatants manifest their Devices. Sirius surrounds his own Device with 3,000 degrees hot flames and charges at Ikki. However, Sirius suddenly loses sight of Ikki, and falls to the ground, as if the parts of his body from below his knees have disappeared. It's revealed that Ikki figured out that Sirius' left eye is nearly blind, and used this and his own speed to strike Sirius' blind spot. Sirius is thus defeated, with Ikki easily winning.

Epilogue
After his defeat in the first trial, Sirius challenges Ikki to two more trials, also losing them. Despite his losses, Sirius refuses to give up, wanting to impress his daughter Stella.