Tokyo Revengers: A Letter from Keisuke Baji manga volume 3 features story by Ken Wakui and art by Yukinori Natsukawaguchi.

To get Chifuyu Matsuno and Ryusei Satou back, Toman's First Division Captain Keisuke Baji goes into the lion's den to face off against his old rival, Kojiro Hishi — one of Yotsuya Kaidan's founding members. Amidst the fighting, Ryusei reveals himself to be a secret Yotsuya member and stays behind. But Baji claims Ryusei has been imprisoned and tormented, and requests to personally take Yotsuya down without the help of Toman's other division leaders. Will Chifuyu's support of Baji waver in the face of a gang war in which his side is severely outnumbered?