Sareee-ISM Chapter XII ~Shinjuku FACE Countdown Series~ was a professional wrestling event promoted by Sareee (as part of her Sareee-ISM series), held on September 26, 2026 at Shinjuku FACE in Tokyo, Japan. It was the second of two shows honoring the venue, where most Sareee-ISM shows have occurred and considered a "home base" for the star, before its closure on September 30, 2026.