Board Thread:General Discussion/@comment-36009152-20190317175134/@comment-36009152-20190717185652

Can see it happening, if only by default of being the protaganist! XD Sika Madu had checks on Yu's power (likely that dark matter substance) when a child if they are the same. If Saito can remove those restraints and activate a true power within him which realises Yu's true inner power, so far it has been kind of training wheels like, may be possible. Equally as likely is weakening Shikama Doji to bring him down to a defeatable level maybe.

As for demons, Shikama Doji himself lay dormant for a large bulk of the series, Tenjiryu, Mitsuba's war axe demon could easily be a currently idle but great power. Whilst Shikama Doji is ancient, Tenjiryu strikes me as a modern man made weapon based on it's design so the demon could be too but again this is all wile guesswork.

Perhaps Yu really cannot lay a finger on Shikama Doji in which case in the wrestling ring Yu needs someone to tag him out and take his place XD