Board Thread:Naruto Discussions/@comment-45444155-20200608233611/@comment-6769189-20200610234537

ReweR 1331 wrote:

What do you mean? Who are you to challenge the manga author who writes that the markings on Shukaku's body are a technique? I didnt question the markings on his body.

ReweR 1331 wrote:

Or is it you who decided for yourself that the markings under your eyes - do not belong to the technique, and all other markings - relate to the technique? You are the one who decided that they for sure belong to technique for no real reason at all.

Shukkaku doesnt manifest eye markings when using any of his abilities. It is dark around his eyes when he is doing nothing. There is nothing that ties Shukkaku's dark eyes to his abilities.