Akito's White Day trained card art

TV Anime “HIGH CARD” Official Site

HIGH CARD Creators Promise An Exciting Series – The Geekiary

High Card Wiki

First Impression: High Card – Beneath the Tangles

POWER GAME, High Card Wiki

2nd 'High Card' Anime Season Debuts 1st New Key Visual

Brandy Blumenthal, High Card Wiki

Pinochle, High Card Wiki

Series HIGH CARD: ♢9 No Mercy has the same original creator of the story, Homura Kawamoto.

Highcards, Fortnite Wiki