Ryuki is quite a polite young man who respectfully addresses others, however he is also quite direct and blunt in the way he talks. While comparing him to Tokita Ohma, Akiyama notes that Ryuki has a gentleness that Ohma didn't have though he also shows a darker side to him

Ryuki for some reason seems to hate the criminal organization called Worm. Their symbol is a centipede.

He fought against the Hawk of Ordos Naidan Mönkhbat
[spoiler[In his match he ended up killing Naidan[/spoiler]

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