Jingi Before

Two books are being released simultaneously: "BEFORE," which depicts the untold younger days of Jin and Yoshiro, and "AFTER," which depicts Jin's life after he retired from the yakuza life!! Why did Jin and Yoshiro choose the path of the yakuza? Their student days, which have never been depicted before, are revealed in "BEFORE"! Furthermore, in "AFTER," a stabbing incident erupts that seems to be an attempt to awaken the retired Jin!?