"Cardfight!! Vanguard Extra Story -IF-" is the fourth series of the Cardfight!! Vanguard anime, and as its name indicates, it belongs to the series reboot while at the same time it's not any sequel or prequel, featuring a world of different realities with alternate characters. However, certain details seem to say it would take place after events on Vanguard Koshien. This series will be the final season of series.
Kouji Ibuki is a Vanguard Fighter. One day, Ibuki was called out to the Tatsunagi residence, when he was suddenly transported to the -IF- world. But the -IF- world has a distorted history, where cardfighting doesn't exist!?
In the -IF- world, Ibuki met with some mysterious girls. The magical girl Emi Sendou, and the fairy of the cards Shuka. They are the "Blaster Pair" that summons units from cards in their battle against the evil minions of Jammer!
And so the quartet of Ibuki, Emi, Shuka, and Suiko Tatsunagi who was caught up in the situation, begin their journey to recover the true history.
-IF- World's Characters
- Emi Sendou
- Toshiki Kai
Original World's Characters
- Opening Theme 1: What-if Wonderland!!
- Ending Theme 1: Gonna be right
Artist: Peaky P-key
- Ending Theme 2: Horizontal Oath
|Episode Guide - Season 11|
|1||The Vanguard's a Magical Girl!?||先導者は魔法少女!?||May 30, 2020||-|
|2||Battles in -if- use Magic!?||ifの世界は魔法でバトル!?||June 6, 2020||-|
|3||Jammer's Tears!? An Idol's Pride!||ジャマーの涙！？アイドルのプライド！||June 13, 2020||-|
|4||Bzzt! VF Gloves are Thriving!?||ビリビリ！ＶＦグローブ大繁盛！？||June 20, 2020||-|
|5||Enemy or Ally!? Mask, the Dark!!||敵か味方か！？マスク・ザ・ダーク！！||June 27, 2020||-|
|6||Say my name!? The Brutal Iron Mask Kyou!!||Ｓａｙ ｍｙ ｎａｍｅ！？キョウ悪な鉄仮面！！||July 4, 2020||-|
|7||It's Revealed!? Magical Girls' Encounter!!||今明かされる！？魔法少女の出会い！！||July 11, 2020||-|
|8||A Capital Incident!! Backstage Boss and the Terrifying Croquette?!||キャピタル事変！！番長と恐怖のコロッケ！？||July 18, 2020||-|
|9||Not Handsome!? Call Forth the Passion!!||男前じゃない！？呼び覚ませ熱い想い！！||July 25, 2020||-|
|10||Can't Finish!! A Supernatural Food Fight?!||食べきれない！！超能力でフードファイト！？||August 1, 2020||-|
|11||Great Quarrel!? Predicament!! Mascot Chara!!||大喧嘩！？難航！！マスコットキャラ！！||August 8, 2020||-|
|12||Truth of the Mask||仮面の真実||August 15, 2020||-|
|13||Crossing Thoughts, Parallel Paths||交差する思い、交わらない道||August 22, 2020||-|
|14||Toshiki Kai||櫂トシキ||September 12, 2020||-|
|15||True History||本来の歴史||September 19, 2020||-|
|16||Encounter with Overlord||邂逅のオーバーロード||September 26, 2020||-|
|17||The End of Regrets||後悔の終わり||October 3, 2020||-|
|18||As a Brother||兄弟として||October 10, 2020||-|
|19||Unwaning Wounds||兄弟として||October 17, 2020||-|
|20||The Place of Beginnings||始まりの場所||October 24, 2020||-|
|21||Sentinel of Fate||October 31, 2020||-|
- This series is the first series to have a female main protagonist.
- This series has a newly designed logo instead of the 2018 version logo.
- This series is similar to the original series' Legion Mate since Aichi is the main antagonist in which his role was given to someone (Toshiki Kai from Legion Mate and Emi Sendou from -IF-).