Kagaho is one of the most powerful Specters and also known as the fastest one, being able to fight against Gold Saints at the same level.
In his fight against Taurus Aldebaran, Kagaho is overpowered but the Gold Saint spares him saying that he didn’t sensed true evil in him. The fight also left him with his damaged Surplice, as only one wing remained.
After the fight Kagaho seems to become more calm and even started to respect Aldebaran. He was also seen after the demise ofTaurus briefly encountering Pegasus Tenma. Afterwards he received an upgrade in his surplice, and was sent to punishGaruda Aiacos for failing to keep the Saints at bay; it was hinted that Kagaho took on the role of Aiacos as a commander. He later reappears invading Sanctuary, preparing to extract Athena’s ichor from Dohko’s veins, to revive the goddess’ Cloth, as requested to him by Hades. Kagaho reveals that the eventual acquisition of Athena’s blood was the reason for sparing Dohko’s life. Triggering Athena’s Cloth resurrection with Dohko’s blood, the Specter snatches his reward, leaving Libra for dead. Kagaho is then stripped of the Athena Cloth by a moribund Libra Dohko, much to his surprise. Bennu is prevented from pursuing him by Gemini Defteros using the technique Another Dimensionto save Libra’s life. Kagaho reappeared right after Aloneslaughtered his Skeletons, standing in Pandora’s path as she tried to go on a pursuit after Hades’ vessel. Bennu revealed that he was aware that their god was Alone all the time, and that his loyalty towards him remained despite this. Challenged by Pandora, he surprisingly allowed her to pass, stating he understood her desire of wanting to be reunited with her younger brother.
Kagaho last appeared preparing to prevent Athena and herSaints trespassing the Third Demon Temple: Terra, which was presented by an Ankh of black fire, in his words, the grave of his human feelings. Kagaho attacked Leo Regulus and Pegasus Tenma with his Crucify Ankh, as well as Athena as she rushed to their aid. In the moment Kagaho was to take their lives, he was stopped by Libra Dohko. The Specter then prepared to engage Libra in battle to the end. After witnessing Dohko’s upgrade in power because of having Athena’s blood running through his veins, Bennu seeks to evaporate that blood from Libra’s body, exhibiting a new technique, Rising Darkness, which creates a small, black sun which raises the temperature similar to that of desert environments, dehydrating the victim. Bennu is then confronted by Dohko, who reveals he has seen the Specter’s true nature, and intends to bring it back. Kagaho explodes in anger, brutally attacking Dohko. The Libra Saint learns about Kagaho’s brother after colliding with the Ankh, and then stops Bennu’s attack. Kagaho is held by Dohko as the latter prepares to use his final technique, which would send them both flying to die in outer space. As they both leave the stratosphere, Kagaho admires the Sun while listening to Dohko’s reasoning, and brings back memories from his past when he lived with Sui. The Specter’s cosmos and flames then change color, and an aura similar to a phoenix’s wings appear behind him, while Kagaho realizes the truth and has a change of heart. Kagaho reminisces about his motivations and loyalty towards Alone. At last, Kagaho burn into the skies becoming a Phoenix, vowing that, if given the chance, he will protect Alone and the Earth in another life.