He did look incredibly depressed in the flashback at Card Capital, watching his friends while knowing what was inside of him and no doubt it was going to take a massive toll on his emotional state.
Gaillard touched upon how heartbreaking it was for Aichi to seal himself away, but it's highly unlikely Aichi would let anyone know the full depth of his anguish lest it lead to hesitation in going forward when it really mattered.
When he was younger, Toshiki Kai gave him the rare card, Blaster Blade, which Aichi refers to as his 'avatar'. A transient soul bound together with a world in which despair, darkness, and death hold sway! Stand up, my avatar! Blaster Joker!Ī shy, nervous boy lacking in confidence, Aichi is the protagonist. In a world of absolute zero, even the heart of a knight that burns with justice will freeze. Step forth and destroy, my avatar! Cleave with your sword of darkness! I Ride Blaster Dark!