Kai and Ren, and Aichi Too

Cardfight!! Vanguard Extra Story -if- · Episode 18 · “Kai and Ren, and Aichi Too”

The history of -IF- world has been distorted and cardfights do not exist. Ibuki and Suiko get involved with Emi and Shuka. A journey to regain the true history by four people begins—! (Source: Cardfight!! Vanguard Wiki)