Thread:Omega64/@comment-4503935-20190703001710/@comment-10330822-20190907054358

I feel Shin probably was "preventing" Sai from becoming serious and ruthless, because like you said, he was an emotional anchor, and that was by design. Like they said in that flashback when Shin was reanimated, the Root do this deliberately, so that when the time is right, they need to kill each other. Thus that "emotional anchor" becomes an enemy and they kill off their emotions. However, Shin died before Sai needed to do that, so that "anchor" was still there, and was still a fond memory rather than an enemy.