Keyframe Card

» see ja.keyframecard.com as it lived, on the wayback machine

~ the obituary ~

Keyframe Card sold you one frame. Not a clip and not an episode, a single still moment pulled out of an anime or a concert film, carrying a rarity grade and a serial number so that your copy of that moment was numbered and distinguishable from everyone else's. Packs were three cards for 1,650 yen with tax, which works out at about 550 yen for one picture.

Sakuragate ran it, a Tokyo company founded in 2007 that had been a wholly owned subsidiary of Aeria since 2017. The service opened at half past nine on the evening of 12 November 2021 with cards drawn from Muv-Luv Alternative, and the press release announcing it had gone out four and a half hours earlier the same day. Other titles followed, including Sengoku Koihime, and in 2022 a line of gravure cards.

That licensing layer is the whole reason this stayed Japanese. The product was not a technology anyone needed a passport for, it was a set of rights deals with Japanese studios over Japanese properties, priced in yen. An English-language host existed and quoted fifteen dollars a pack, but the catalog behind it did not change. Wanting a numbered still of a Muv-Luv scene is not a desire that travels on its own.

~ the case file ~

~ owning a single frame ~

The name is explained on the service's own about page and the explanation is better than the product. In video editing a keyframe is the point where you record setting values at one specific frame of the footage. Sakuragate took that and said each card does the same thing to a scene: it fixes a set of values, a rarity and a serial number, onto one frame, so the moment becomes something held rather than watched.

The site was three rooms. Packs went on sale in Drop and landed in Gallery, and Ranking existed to tell you where that left you against everybody else. The terms of service defined a coin as a shared point used to play games on the service, and barred passing a purchase to anyone outside it. Whatever you bought stayed on the premises.

~ the word it never used ~

Launching a numbered digital collectible in November 2021 put it in the middle of the loudest year that idea ever had. The about page makes the pitch in full: fans already support what they love on their own, through social media and unpaid, so what if a fan could own one scene of it and hold that scene as an asset.

Both of those words sit inside quotation marks on the company's own page. It wrote 所有 and 資産, owning and asset, and then hedged each one typographically, as if it were not quite prepared to stand behind either. The words NFT and blockchain appear nowhere on that page or on the final front page. In a year when most of this business led with the chain, this one described much the same promise and declined to name the machinery, and whether that was caution or absence is not something the surviving pages answer.

~ the notice nobody archived ~

On 26 December 2025 a news item titled サービス終了のお知らせ appeared on the front page. The front page shrank to almost nothing around it, down to the menu and the footer. That headline is the whole of what survives: the item lived at a detail page which the Archive never captured with a working status code, so the reason it gave, if it gave one, is gone.

The end date is thinner than it looks. A single unfootnoted line in the Japanese Wikipedia entry for Sakuragate says 2 February 2026, and no other source states a day. What can be checked independently is the gap around it: the site was still serving normally on 24 January and the English host was returning 502 by 4 February. Dengeki Online's weekly roundup of services closing that week does not mention it at all.

The logo file it was still serving on its last working day was named logo_beta_1.png. Sakuragate is still trading, with a redesigned site and a description of itself as a small team building things with AI. Its current project list does not include Keyframe Card.

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