Shingen was once an exceptionally cruel and bloodthirsty man and was feared as a literal demon by his union and enemies. However, as is implied, his defeat by Gapryong Kim and his gang caused a serious psychological blow to him. After his defeat, Shingen became extremely lethargic and practically insensitive to almost everyone and everything. Despite his generally apathetic behavior, Shingen can get out of this if he finds enough reasons for it And that reason was you.