- This card's English name means "Red Ace" in Japanese; Akaki (赤き) means "red" and eisu is a phonetic rendering of "ace".
- This card's mask resembles Hei's mask from Darker Than Black.
- He is also manipulating what appears to be lightning, much like Hei.
- This card's concept could have been inspired by the Japanese urban legend of Aka Manto.
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