Bushiroad's Weiss Schwarz card game is releasing Oshi no Ko Vol. 3 on August 7, 2026, with a Japanese booster box listed around 6,370 yen at retail. Each box contains 10 boosters with 8 cards per booster, giving collectors a substantial pool of both normal and parallel cards to chase from the anime's growing card catalog.
Oshi no Ko has become one of the more closely watched anime properties in recent years for its sharp examination of the idol industry, and this third volume of Weiss Schwarz cards continues Bushiroad's now-established pattern of pairing the game's mechanics with genuinely premium physical card treatments for the series' most popular characters.
The set's standout feature is its hot-stamped signature program: foil-stamped signatures from six cast members appear across the release, giving collectors a rare chance to own officially licensed, cast-signed cards without needing to attend a convention signing.
Each booster box includes 10 boosters of 8 cards each, offering over 100 normal cards and more than 100 parallel cards across the full release. PR cards, 24 types split evenly between normal and parallel versions, are seeded throughout, with one additional PR card included as a carton bonus for those buying a full case rather than a single box.
Six freshly illustrated cards feature hot-stamped signatures from cast members Takeo Otsuka (Aqua), Yurie Ikoma (Ruby), Megumi Han (Kana Arima), Manaka Iwami (Akane Kurokawa), Rumi Okubo (MEMcho), and Rie Takahashi (Ai). Hot-stamped signature cards like these carry genuine scarcity value beyond the game's normal parallel rarity structure, since they represent an actual reproduction of the voice actor's own signature rather than an illustrated autograph.
Oshi no Ko's popularity stems largely from its unusually candid depiction of the entertainment industry's darker realities, wrapped in a story about reincarnation and idol culture that has resonated well beyond typical genre audiences. That crossover appeal has made its Weiss Schwarz sets some of the game's more consistently strong sellers across its now three-volume run.
Because the six signature cards are the clear chase items in this set, collectors focused on completing that specific subset should budget for potentially needing to supplement pulls with secondary market purchases, since a single box is unlikely to guarantee all six signatures. Treating the base and parallel card pool as the primary box-opening reward, with signature cards as a bonus rather than a guarantee, sets realistic expectations.
Oshi no Ko's earlier Weiss Schwarz volumes established the template this Vol. 3 release follows closely, including the hot-stamped signature card concept that has become one of the series' defining features within Bushiroad's catalog. Collectors who picked up the earlier volumes should find the overall box structure and parallel rarity distribution familiar, with the main draw of Vol. 3 being an entirely new card pool and signature lineup rather than a fundamentally different box format.
A magnetic acrylic case sized for a Japanese large booster box is a clean way to display an unopened box, while premium card sleeves are worth having on hand immediately for protecting any signature card pulls the moment they're opened.
Hot-stamped signature cards from a series' actual voice cast add a layer of authenticity that illustrated-only cards can't replicate, since they represent a genuine reproduction of the performer's own signature rather than purely artwork celebrating the character. For a series like Oshi no Ko that's specifically about the entertainment industry and the people behind idol personas, having real cast signatures woven into the card game adds a fitting layer of meta-relevance that collectors of the series tend to especially appreciate.
Weiss Schwarz Oshi no Ko Vol. 3 releases August 7, 2026.
One retailer listed the Japanese booster box at 6,370 yen.
Six freshly illustrated cards include hot-stamped signatures from six cast members of the Oshi no Ko anime.
Each box contains 10 boosters of 8 cards each, for 80 cards total per box.
This Oshi no Ko Vol. 3 release gives Weiss Schwarz collectors a genuinely premium set anchored by rare cast-signed cards, continuing the anime's strong run within Bushiroad's card game catalog. For fans of the series, this is a worthwhile pickup ahead of its August 7 release, particularly for anyone who has followed the signature card program since Vol. 1 and wants to complete the full run of cast-signed cards.
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