According to his chronicles, he was the one that infused the Kaiho armys weapons with the Hikalcum ore that allows them to wield light essence without extensive training, and was also the first of the Kaiho leaders to get a knack for Life Essence. Badass Bookworm: Captain Yuki, at least in the backstory.Back Stab: Some of the stealth kills Aragami can do.The fact that Yamiko tells you she likes them is early Foreshadowing. Asian Fox Spirit: The statues that represent the Shadow Empress.Sora asks him why he's still holding her, his defeated enemy, if he's not Ryo.

After Aragami stabs Sora, he tries to reject Ryo's memories, unable to accept that he's spent the night fighting his own army and working to undo everything he accomplished in life.

Armor-Piercing Question: As Yamiko is revived, Aragami asks what she'll do when she wins, pointing out that Nisshoku was completely destroyed and she has no one left.

Panthers for Hyo and Shinobu in the Nightfall DLC.

It's further supported by his use of a technique during the final battle that Yamiko explicitly calls Ryuta's, where he summons a shadow dragon to defend himself. It's implied that this comes from Ryuta, as their armour is identical.

Aragami himself has some light associations with dragons, having the mark on one of his left gauntlet, and one variation of his shadow kills has him drag his enemy into the darkness with a shadow dragon.

Kitsune for the Shadow Empress, as indicated by the many statues seen throughout the game.

Animal Motifs: A few, mostly for Yamiko's old Dakudaga team, lampshaded in Hyo's notes: Yamiko being the Fox, Ryuta being the Dragon, and Orochi being the Snake.

And Your Reward Is Clothes: Earning Kami, Yurei, and Oni seals gives you access to new skins for Aragami.

Amnesiac Dissonance: Aragami was Kaiho's leader before his death.

Ambition Is Evil: Whatever the Alchemists real deal is, anyone that proclaims that a dangerous forbidden technique is only the beginning cant be planning anything good.

We dont find out exactly what he wanted to do with Yamikos soul fragment, but considering the sinister vibe of his personal notes, and the fact that he felt the need to trick Hikaru and Sora into going to a secluded place with him to complete the transferral ritual, it was probably nothing good.

Ambiguously Evil: The Alchemist from the Nightfall DLC.

Aragami nightfall yuki