Spin-off Kakegurui Twin will end in the upcoming Gangan Joker issue 7/2023 out May, 22. : r/Kakegurui

Gangan Joker #171 - No. 7, 2023 (Issue)

Kakegurui on cover Gangan Joker. : r/Kakegurui

Mag Talk - Monthly Gangan Joker (Square Enix), Page 35

Mag Talk - Monthly Gangan Joker (Square Enix), Page 28

Kakegurui Twin' Spin-off Manga Gets Anime Adaptation

The Kakegurui Twin spinoff officially ends in this month's Gangan Joker. English translation still has years of catch up to do. : r/Kakegurui

Kakegurui – Compulsive Gambler / Kakegurui Twin / Kakegurui Midari

Kakegurui Twin Spin-Off Anime by MAPPA Announced for August 2022 - Anime Corner

Reddit - Dive into anything

Manga Mogura RE on X: Kakegurui Spin-off Kakegurui Twin by Homura Kawamoto, Kei Saiki will end in the upcoming Gangan Joker issue 7/2023 out May, 22. 14 or 15 volumes in total.

Kakegurui Twin Anime Reveals New Promo, Visual, Cast and More - Crunchyroll News