Master of the unarmed "Nanto Koshu Ken" style, where rapid attacks are used to slash the opponent's joints, leaving them defenseless. 
Once Kenshiro's friend, he grew jelous of him because of Yuria's love towards him. After the apocalypse happened, Shin defeated Kenshiro and kidnapped Yuria, bringing her back to his city, Southern Cross. While he's egotistical and ruthless on the outside, he only wants Yuria to love him back. After her suicide, Shin now searches for a new flame.
